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Home » Eclipse Projects » Eclipse Platform » Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE
Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849036] Thu, 30 December 2021 10:25 Go to next message
Peter Lankton is currently offline Peter LanktonFriend
Messages: 5
Registered: December 2021
Junior Member
Hello,

I am using Infineons DAVE IDE (Eclipse based IDE for microcontrollers) based on Eclipse Neon and I want to use the DevStyle plugin.
Since DAVE doesn't come with marketplace, I need to install it manually first, which I did successfully - maybe a year ago - by accessing http://download.eclipse.org/releases/neon.
Then, with the marketplace installed, I could install the DevStyle plugin. But right now, I cannot access the site anymore (same PC, same version of DAVE) . I get the following errors:

with http:

HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/releases/neon/content.xml
HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/releases/neon/content.xml
General connection error with response code=301

and with https:

Unable to read repository at https://download.eclipse.org/releases/neon.
Unable to read repository at https://download.eclipse.org/releases/neon.
HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
General connection error with response code=301

I can access e.g. https://download.eclipse.org/eclipse/updates/4.6/ just fine. Also with STM32CubeIDE (another eclipse based IDE for microcontrollers) I can access the Neon site over http and https. So I don't think it is a problem on my site.

Did something change on the server side in the last year or so that DAVE has a problem with?
What can I do?
I there a way to do something like an offline installation of the plugin?

Best regards
Peter

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849041 is a reply to message #1849036] Thu, 30 December 2021 15:08 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 33137
Registered: July 2009
Senior Member
I think the 301 is because http is permanently moved to https by the download.eclipse.org server. But, at least in newer IDEs, that redirection is followed by p2 and is not a problem. Perhaps in your case you can use https://download.eclipse.org/releases/neon directly (with https scheme not http scheme) to avoid whatever problem you're having.

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849064 is a reply to message #1849041] Sat, 01 January 2022 11:16 Go to previous messageGo to next message
Peter Lankton is currently offline Peter LanktonFriend
Messages: 5
Registered: December 2021
Junior Member
is that a setting? because just writing https gives a similar error, see first post.

edit:
see here the full error log using: https://download.eclipse.org/releases/neon/


!ENTRY APPLICATION_MODEL 1 0 2022-01-01 12:21:23.770
!MESSAGE Only One DAVE Application is running 

!ENTRY org.eclipse.equinox.p2.core 4 0 2022-01-01 12:21:52.067
!MESSAGE Provisioning exception
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:243)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:440)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:126)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:75)
	at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
	at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:231)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	... 1 more
!SUBENTRY 1 org.eclipse.equinox.p2.transport.ecf 4 1002 2022-01-01 12:21:52.067
!MESSAGE HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
!STACK 1
org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 2 org.eclipse.ecf.identity 4 0 2022-01-01 12:21:52.067
!MESSAGE General connection error with response code=301

!ENTRY org.eclipse.equinox.p2.ui 4 0 2022-01-01 12:21:52.067
!MESSAGE Unable to read repository at https://download.eclipse.org/releases/neon.
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at https://download.eclipse.org/releases/neon.
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:185)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:440)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:126)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:75)
	at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
	at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:231)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.equinox.p2.core.ProvisionException: HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:243)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
	... 13 more
Caused by: org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	... 1 more
!SUBENTRY 1 org.eclipse.equinox.p2.metadata.repository 4 1002 2022-01-01 12:21:52.068
!MESSAGE Unable to read repository at https://download.eclipse.org/releases/neon.
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:243)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:440)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:126)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:75)
	at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
	at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:231)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	... 1 more
!SUBENTRY 2 org.eclipse.equinox.p2.transport.ecf 4 1002 2022-01-01 12:21:52.068
!MESSAGE HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
!STACK 1
org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 3 org.eclipse.ecf.identity 4 0 2022-01-01 12:21:52.068
!MESSAGE General connection error with response code=301

!ENTRY org.eclipse.equinox.p2.core 4 0 2022-01-01 12:21:53.659
!MESSAGE Provisioning exception
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:243)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:440)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:126)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getRepository(MetadataRepositoryElement.java:115)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getQueryable(MetadataRepositoryElement.java:109)
	at org.eclipse.equinox.internal.p2.ui.QueryProvider.getQueryDescriptor(QueryProvider.java:88)
	at org.eclipse.equinox.internal.p2.ui.model.QueriedElement.fetchChildren(QueriedElement.java:101)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:77)
	at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
	at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:231)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	... 1 more
!SUBENTRY 1 org.eclipse.equinox.p2.transport.ecf 4 1002 2022-01-01 12:21:53.660
!MESSAGE HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
!STACK 1
org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 2 org.eclipse.ecf.identity 4 0 2022-01-01 12:21:53.660
!MESSAGE General connection error with response code=301

!ENTRY org.eclipse.equinox.p2.ui 4 0 2022-01-01 12:21:53.660
!MESSAGE Unable to read repository at https://download.eclipse.org/releases/neon.
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: Unable to read repository at https://download.eclipse.org/releases/neon.
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:185)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:440)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:126)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getRepository(MetadataRepositoryElement.java:115)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getQueryable(MetadataRepositoryElement.java:109)
	at org.eclipse.equinox.internal.p2.ui.QueryProvider.getQueryDescriptor(QueryProvider.java:88)
	at org.eclipse.equinox.internal.p2.ui.model.QueriedElement.fetchChildren(QueriedElement.java:101)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:77)
	at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
	at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:231)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.equinox.p2.core.ProvisionException: HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:243)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
	... 17 more
Caused by: org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	... 1 more
!SUBENTRY 1 org.eclipse.equinox.p2.metadata.repository 4 1002 2022-01-01 12:21:53.660
!MESSAGE Unable to read repository at https://download.eclipse.org/releases/neon.
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
	at org.eclipse.equinox.internal.p2.repository.CacheManager.createCache(CacheManager.java:243)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.getLocalFile(SimpleMetadataRepositoryFactory.java:66)
	at org.eclipse.equinox.internal.p2.metadata.repository.SimpleMetadataRepositoryFactory.load(SimpleMetadataRepositoryFactory.java:88)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.addChild(CompositeMetadataRepository.java:166)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepository.<init>(CompositeMetadataRepository.java:106)
	at org.eclipse.equinox.internal.p2.metadata.repository.CompositeMetadataRepositoryFactory.load(CompositeMetadataRepositoryFactory.java:122)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.factoryLoad(MetadataRepositoryManager.java:57)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:768)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:668)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.loadMetadataRepository(ProvisioningUI.java:440)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getMetadataRepository(MetadataRepositoryElement.java:126)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getRepository(MetadataRepositoryElement.java:115)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.getQueryable(MetadataRepositoryElement.java:109)
	at org.eclipse.equinox.internal.p2.ui.QueryProvider.getQueryDescriptor(QueryProvider.java:88)
	at org.eclipse.equinox.internal.p2.ui.model.QueriedElement.fetchChildren(QueriedElement.java:101)
	at org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement.fetchChildren(MetadataRepositoryElement.java:77)
	at org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
	at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:231)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	... 1 more
!SUBENTRY 2 org.eclipse.equinox.p2.transport.ecf 4 1002 2022-01-01 12:21:53.660
!MESSAGE HTTP Server Unknown HTTP Response Code (301):http://download.eclipse.org/technology/epp/packages/neon/content.xml
!STACK 1
org.eclipse.ecf.filetransfer.BrowseFileTransferException: General connection error with response code=301
	at org.eclipse.ecf.provider.filetransfer.browse.URLFileSystemBrowser.runRequest(URLFileSystemBrowser.java:134)
	at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:69)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 3 org.eclipse.ecf.identity 4 0 2022-01-01 12:21:53.660
!MESSAGE General connection error with response code=301

[Updated on: Sat, 01 January 2022 11:31]

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849066 is a reply to message #1849064] Sat, 01 January 2022 13:12 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 33137
Registered: July 2009
Senior Member
In Window -> Preferences -> Install/Update -> Available Update Sites are all the sites that you can enable and will typically be contacted when installing new software or when checking for updates. Try making these be https, particularly for the Neon site.

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849067 is a reply to message #1849066] Sat, 01 January 2022 13:36 Go to previous messageGo to next message
Peter Lankton is currently offline Peter LanktonFriend
Messages: 5
Registered: December 2021
Junior Member
I dont get it. What should I do besides writing the location address with https?

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849068 is a reply to message #1849067] Sat, 01 January 2022 14:29 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 33137
Registered: July 2009
Senior Member
I have only suggested changing all the locations to use https, nothing else. Have you tried that?

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849069 is a reply to message #1849068] Sat, 01 January 2022 16:46 Go to previous messageGo to next message
Peter Lankton is currently offline Peter LanktonFriend
Messages: 5
Registered: December 2021
Junior Member
Ok i tried now, but changing other locations to https doesn't change anything. I don't see why it would.

But I noticed something else by looking at the exchanged packages with wireshark.
(I don't have much understanding of what is going on, but I can compare the coloring :) )

when I access https://download.eclipse.org/releases/2021-03 with DAVE, there is no green (=http package) entry in the list. Only tcp and tls packages. And I get the content list to choose from. (but wrong release so this does not help)
when I access https://download.eclipse.org/releases/neon with DAVE, I get lots of http packages and the already mentioned erros.
when I access https://download.eclipse.org/releases/neon with STM32CubeIDE, I also get some http packages in the beginning, but it seems to somehow manage to switch to https and i get the content list in the end.

So for me it looks like a problem with this particular server(?)/repository(?)/address(?) which DAVE cannot handle.

edit:
tried a few others as well:
https://download.eclipse.org/releases/mars => error
https://download.eclipse.org/releases/oxygen => error
https://download.eclipse.org/releases/photon => error
https://download.eclipse.org/releases/2018-09 => working
https://download.eclipse.org/releases/2019-12 => working

2nd edit:
I also tried the neon site with Neon 3 Eclipse IDE for C/C++ Developers: no problems here.
So it's only a problem with the named releases and in combination with DAVE. It definitely worked before, but maybe then http was still available.

[Updated on: Sat, 01 January 2022 18:33]

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849075 is a reply to message #1849069] Sun, 02 January 2022 07:06 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 33137
Registered: July 2009
Senior Member
I see, sorry I misread the URL

These release repositories are composites and some of the older ones refer to children using http, e.g., in neon's compositeContent.jar there is this:
http://download.eclipse.org/technology/epp/packages/neon
while newer composites use https for referencing the EPP repository.

Using this URL you can more easily see the contents of the download.eclipse.org server:

https://download.eclipse.org/justj/?file=releases/neon

You can use this URL to access the repository that is the final release of neon:

https://download.eclipse.org/releases/neon/201705151400/

If you need the EPP repository too (which is unlikely) you can use

https://download.eclipse.org/technology/epp/packages/neon/

It's actually moved to here so you might need to use this directly because for some reason your DAVE IDE is not following redirections:

https://archive.eclipse.org/technology/epp/packages/neon/

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Cannot access http://download.eclipse.org/releases/neon/ with DAVE IDE [message #1849701 is a reply to message #1849075] Sun, 30 January 2022 14:41 Go to previous message
Peter Lankton is currently offline Peter LanktonFriend
Messages: 5
Registered: December 2021
Junior Member
Sorry for the late reply, I somehow missed the notification.

Thank you very much for your answer and the links!
https://download.eclipse.org/releases/neon/201705151400/ worked perfectly. My eyes are really happy now that I can install "Darkest Dark theme" :).

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