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marketplace error after fresh install of 2020-06 [message #1828822] Fri, 19 June 2020 05:29 Go to next message
Eclipse UserFriend
Fresh install of 2020-06 , fresh workspace, go to login to access my list of favourite plugins after not using eclipse for more than a year, and error.

Any ideas out there ?

MarketplaceDiscoveryStrategy failed with an error
Cannot complete request to https://marketplace.eclipse.org/api/p?client=org.eclipse.epp.mpc.core&client.version=1.8.3.v20200522-1533&os=macosx&ws=cocoa&nl=en_US&java.version=13.0.2&product=org.eclipse.epp.package.java.product&product.version=4.16.0.I20200604-0540&runtime.version=3.18.0.v20200506-2143&platform.version=4.16.0.v20200604-0540: Invalid response content: The markup in the document preceding the root element must be well-formed.
Invalid response content: The markup in the document preceding the root element must be well-formed.
The markup in the document preceding the root element must be well-formed.
Received response begins with:

1: <!doctype html public "-//w3c//dtd html 4.0 transitional//en">
2: <html>
3:   <head>
Re: marketplace error after fresh install of 2020-06 [message #1828855 is a reply to message #1828822] Sat, 20 June 2020 00:54 Go to previous messageGo to next message
Eclipse UserFriend
Perhaps this was a transient server problem because when I visit that URL it yields content that starts like this:
<marketplace>
  <market name="Eclipse Project" id="3891" url="https://marketplace.eclipse.org/category/markets/eclipse-project">
    <category id="6" count="5" url="https://marketplace.eclipse.org/taxonomy/term/6%2C3891" name="Editor"/>
Re: marketplace error after fresh install of 2020-06 [message #1839618 is a reply to message #1828822] Wed, 24 March 2021 11:38 Go to previous messageGo to next message
Eclipse UserFriend
I have the same problem, but with 2021-03:
MarketplaceDiscoveryStrategy failed with an error
Cannot complete request to https://marketplace.eclipse.org/api/p?client=org.eclipse.epp.mpc.core&os=win32&platform.version=4.19: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

I see the XML when I go to https://marketplace.eclipse.org/api/p?client=org.eclipse.epp.mpc.core&os=win32&platform.version=4.19 in a web browser, but Eclipse fails.
Re: marketplace error after fresh install of 2020-06 [message #1839645 is a reply to message #1839618] Thu, 25 March 2021 02:02 Go to previous messageGo to next message
Eclipse UserFriend
PKIX errors are caused by the JRE you are using to run the IDE missing the root certificate associated with the site being accessed. Updating your JRE to a newer one should help.
Re: marketplace error after fresh install of 2020-06 [message #1849432 is a reply to message #1839645] Wed, 19 January 2022 12:08 Go to previous messageGo to next message
Eclipse UserFriend
hello,
I use in eclipse2021-12 and with jdk 17 and I get error when I try to access the Market place:
org.eclipse.core.runtime.CoreException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at org.eclipse.epp.internal.mpc.core.transport.httpclient.HttpClientTransport.stream(HttpClientTransport.java:117)
at org.eclipse.epp.internal.mpc.core.util.FallbackTransportFactory$FallbackTransport.stream(FallbackTransportFactory.java:74)
at org.eclipse.epp.internal.mpc.core.service.RemoteMarketplaceService.processRequest(RemoteMarketplaceService.java:165)
at org.eclipse.epp.internal.mpc.core.service.RemoteMarketplaceService.processRequest(RemoteMarketplaceService.java:130)
at org.eclipse.epp.internal.mpc.core.service.RemoteMarketplaceService.processRequest(RemoteMarketplaceService.java:117)
at org.eclipse.epp.internal.mpc.core.service.DefaultMarketplaceService.listMarkets(DefaultMarketplaceService.java:195)
at org.eclipse.epp.internal.mpc.core.service.CachingMarketplaceService.listMarkets(CachingMarketplaceService.java:73)
at org.eclipse.epp.internal.mpc.ui.catalog.MarketplaceDiscoveryStrategy.findMarketplaceCategory(MarketplaceDiscoveryStrategy.java:917)
at org.eclipse.epp.internal.mpc.ui.catalog.MarketplaceDiscoveryStrategy.performDiscovery(MarketplaceDiscoveryStrategy.java:232)
at org.eclipse.equinox.internal.p2.discovery.Catalog.performDiscovery(Catalog.java:88)
at org.eclipse.epp.internal.mpc.ui.catalog.MarketplaceCatalog.performDiscovery(MarketplaceCatalog.java:432)
at org.eclipse.equinox.internal.p2.ui.discovery.wizards.CatalogViewer.lambda$1(CatalogViewer.java:568)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)


I try to add the marketPlace certificate to cacerts in jdk but it didn't solve the problem?
Someone can help me with this?
Re: marketplace error after fresh install of 2020-06 [message #1851930 is a reply to message #1849432] Thu, 21 April 2022 15:18 Go to previous message
Eclipse UserFriend
I did following two things (not sure which one worked)
First I use chrome browser's address bar's lock button to view the certificate and import it to base64 .cer file, then I imported that cer to cacert that belong's to the jre that my eclipse was using, I thought this would solve the problem, but it was still showing that error, so I went to preference and set the manual proxy (my workplace's proxy setting). After that I could go to marketplace successfully using eclipse context menu.
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