Eclipse 3.5 Unable to install plugins

Question

I really don't know what's going on with Eclipse 3.5 (3.5.0 or 3.5.1, same issues), but it's been now 2 days that I'm struggling with Eclipse to find a way to make the plugins installation work via the "Install New Software screen"!!! I have visited a lot of forums and blogs, tried many solutions but in vain: each time the current problem disappears and a new one appears.

I'm trying to make it work at my office, so behind proxy. The best advice I got so far is the one regarding the known issue with NTLM proxies: http://wiki.eclipse.org/ECF_Filetransfer_Support_for_NTLMv2_Proxies. I put in place the hint, but now I have a new error message: Eclipse cannot find the repositories at all... For instance here is what I get now with the Galileo update site itself:

org.eclipse.equinox.internal.provisional.p2.core.ProvisionException: No repository found at http://download.eclipse.org/releases/galileo.
    at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.fail(AbstractRepositoryManager.java:380)
    at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:606)
    at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
    at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:88)
    at org.eclipse.equinox.internal.provisional.p2.ui.operations.ProvisioningUtil.loadMetadataRepository(ProvisioningUtil.java:88)
    at org.eclipse.equinox.internal.provisional.p2.ui.QueryableMetadataRepositoryManager.doLoadRepository(QueryableMetadataRepositoryManager.java:55)
    at org.eclipse.equinox.internal.provisional.p2.ui.QueryableRepositoryManager.loadRepository(QueryableRepositoryManager.java:195)
    at org.eclipse.equinox.internal.provisional.p2.ui.QueryableRepositoryManager.loadAll(QueryableRepositoryManager.java:108)
    at org.eclipse.equinox.internal.p2.ui.sdk.PreloadingRepositoryHandler$2.run(PreloadingRepositoryHandler.java:71)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Samething with http://download.eclipse.org/eclipse/updates/3.5, or http://download.eclipse.org/tools/mylyn/update/e3.4/ and whatever the site: no one works.

Please somebody help!

PS: Some more details below:

I have the same issue with third party software too... for instance: http://www.epic-ide.org/updates/testing/site.xml.... same error message.

If I go to Preferences > Install / Updates > Available Software Sites, click on whatever the site and on Test Connection I get a ProvisionException with this error message (when I click on details):

Unable to read repository at http://download.eclipse.org/technology/epp/packages/galileo/site.xml. Unable to read repository at http://download.eclipse.org/technology/epp/packages/galileo/site.xml. Server redirected too many times (20)

the solution is: add following lines to your eclipse.ini file (before -vmargs): (verified on 3.5 ; 3.5.1; 3.6.2)

-Dorg.eclipse.ecf.provider.filetransfer.excludeContributors=org.eclipse.ecf.provider.filetransfer.httpclient
-Dhttp.proxyPort=8080
-Dhttp.proxyHost=myproxy
-Dhttp.proxyUser=mydomain\myusername
-Dhttp.proxyPassword=mypassword
-Dhttp.nonProxyHosts=localhost|127.0.0.1

Solution 1

We had tons of issues here, namely with the proxy support. We ended-up using Pulse: http://www.poweredbypulse.com/

Pulse has built-in support for a few plugin, however, you can add third-party plugin and even local jar file quite easily.

Strangely it does not always use the built-in Eclipse feature, so sometimes when Eclipse become difficult ( like in our case for the proxy business ), you can work-around it with Pulse.

Solution 2

Use the following setting and you will be all set. Go to Window --> Preference --> General --> Network Connection --> select Direct from drop down

Solution 3

Couple of weeks ago I stumbled upon a Problem with Java and a MySQL-Connection. The Problem being that no Connection could be established. Anyway, the fix was to add -Djava.net.preferIPv4Stack=true to the command line.

I just added the same line to eclipse.ini and as it turns out, it also fixes this issue for me. The option name is pretty self-explainitory: It prefers the IPv4 stack over the IPv6 stack. So this solution may not be viable for everyone.

Solution 4

I had a similar problem setting up eclipse in the office. I had set up the for HTTP, HTTPS and SOCKS in:

Window>pref>general>network connections

Clearing the proxy settings for SOCKS fixed the problem for me.

Solution 5

I had a similar problem setting up eclipse.

I changed: NATIVE connection to MANUAL and cleared the proxy settings for SOCKS in Windows -> Preferences -> General -> Network connection. That fixed the problem for me.

View more solutions

Comments

[SirFabel]

Thank you very much for this wonderful advice. Actually Pulse did not really help me directly, but it is by installing it and configuring it that I have fixed my issue: I disabled the SOCKS settings and now it works!! The error message of Pulse was more explicit than the one of Eclipse... Pulse still seems to be a very a good tool! :-)

[SirFabel]

To anyone who has some issues with installing plugins in Eclipse 3.5 through Proxy, here are my advices: - Install the SR1: Eclipse 3.5.1 (they seem to have corrected some stuffs) - Set the following system property in you eclipse.ini file: -Dorg.eclipse.ecf.provider.filetransfer.excludeContributors=‌​org.eclipse.ecf.prov‌​ider.filetransfer.ht‌​tpclient For more details on this: wiki.eclipse.org/ECF_Filetransfer_Support_for_NTLMv2_Proxies - Configure only the HTTP and HTTPS proxies. Not SOCKS!! Normally it should work. Bye, SirFabel

[uKolka]

Android is..never mentioned whatsoever in the questions, nor comments.

[avalancha]

+1 This one did it for me too, no other steps required

[Ruan Mendes]

Solved it for me running Eclipse Juno (4.2) on the Mac where the other solutions on this page didn't.

[dahui]

This just sorted out a whole host of problems I was having. Thank you, kind sir!

[Random]

Worked for me on Eclipse Mars !

[Rahul Maurya]

Thanks a lot, after 3 hr of struggle finally got this. And it is working for me.

[Sebi2020]

The TE never mentioned android.