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Eclipse will not install [message #1821685] Tue, 18 February 2020 16:13 Go to next message
Bill Short is currently offline Bill ShortFriend
Messages: 3
Registered: February 2020
Junior Member
I have attempted to install Eclipse IDE for Java Developers on five PC's. Three of them installed but it will not install on two PC's. The two happen to be identical PC's (Dell Precision 3420, i7-6700). These are different than the other three.

Installed Java first. When I attempt to install Eclipse it fails almost immediately. The error in the log file is:
ERROR: org.eclipse.equinox.p2.metadata.repository code=1000 No repository found at http://download.eclipse.org/oomph/updates/milestone/latest.

This is Windows 10, 1909 (also attempted it on 1809 and 1903). Logged in as a local admin. Right click Run as Admin. Turned off all virus and malware protection. Turned off the Windows firewall. Same results.

Thanks.
Re: Eclipse will not install [message #1821715 is a reply to message #1821685] Wed, 19 February 2020 05:01 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 32109
Registered: July 2009
Senior Member
That's very strange. Clearly the site is valid. For the 3 sites that are loaded, one difference is that the oomph site is a composite while the other two are simple, so for the composite it must load the composite's compositecContent.jar and then must load the one simple repository that it references. Currently that should be this one:

http://download.eclipse.org/oomph/drops/milestone/S20200205-031529-1.16.0-M2/

Do each of these computers have the same version of Java installed? The log shows version "13.0.2+8" which is I believe a very recent adoptJDK version.

Are you in a location where a network proxy is involved in the network access?

One thing you could try is to remove the folders <home>\.p2\org.eclipse.equinox.p2.repository\cache (p2's partial cache with cryptic names) and <home>\.eclipse\org.eclipse.oomph.p2\cache (Oomph's full cache with names that indicate from which site the file was actually loaded). If you then try again, it will be interesting to know which cached results successfully show up in Oomph's cache (to know how far it got in the loading process). Also, is the folder \.p2\org.eclipse.equinox.p2.repository\cache\download's empty after a retry (did any downloads attempts fail to be moved to the actual cache folder)?



Ed Merks
Professional Support: https://www.macromodeling.com/
Re: Eclipse will not install [message #1822310 is a reply to message #1821715] Tue, 03 March 2020 18:03 Go to previous messageGo to next message
Bill Short is currently offline Bill ShortFriend
Messages: 3
Registered: February 2020
Junior Member
Sorry for the delay but the email was in my spam filter.

Both PC's have Java 13.0.2, it was just installed prior to installing Eclipse.

No network proxy. We are behind a firewall but these users should have no issues with that.

I did all of the steps you listed and attached screenshots of the results.

Thanks for your help.
Re: Eclipse will not install [message #1822325 is a reply to message #1822310] Wed, 04 March 2020 04:45 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 32109
Registered: July 2009
Senior Member
It seems clear from the cache state that nothing could be loaded from the Oomph repo. But http://download.eclipse.org/oomph/updates/milestone/latest/compositeContent.jar most definitely exists and should have been tried and that should have been successful. I can only account for this failure if the firewall is somehow configured differently on the two failing machines. On those machines does the URL http://download.eclipse.org/oomph/updates/milestone/latest/compositeContent.jar work in a browser?

Ed Merks
Professional Support: https://www.macromodeling.com/
Re: Eclipse will not install [message #1822398 is a reply to message #1822325] Thu, 05 March 2020 16:36 Go to previous messageGo to next message
Bill Short is currently offline Bill ShortFriend
Messages: 3
Registered: February 2020
Junior Member
Yes. I just tested on both of those users. Clicking on the link downloads that file to their Downloads directory.
Re: Eclipse will not install [message #1822439 is a reply to message #1822398] Fri, 06 March 2020 09:16 Go to previous message
Ed Merks is currently offline Ed MerksFriend
Messages: 32109
Registered: July 2009
Senior Member
It's all very strange.

We'd really need to see low-level information about the network traffic. Looking at https://hc.apache.org/httpcomponents-client-4.5.x/logging.html it seems such things can be enabled. E.g., if I run like this from the command line:
eclipse-inst.exe -consolelog -vmargs -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.SimpleLog  -Dorg.apache.commons.logging.simplelog.showdatetime=true  -Dorg.apache.commons.logging.simplelog.log.org.apache.http=DEBUG -Dorg.apache.commons.logging.simplelog.log.org.apache.http.wire=ERROR
Then I see lots of details about what's going on under the covers.

I wonder if somehow the network proxy settings are different across the machines? You'd have to switch to advanced mode and use the button to the right of the ? button to see those.


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