Eclipse 3.5 Unable to install plugins

user_180782 0
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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
eclipse-3.5 eclipse ide java
17 Answers

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.

user_2721220

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.

user_2315130

I also faced the same problem while working with eclips Neon. It got fixed after editing the .ini file with following content:

>    -Dhttp.proxyPort=8080

>    -Dhttp.proxyHost=myproxy

>    -Dhttp.proxyUser=mydomain\myusername

>    -Dhttp.proxyPassword=mypassword

>    -Dhttp.nonProxyHosts=localhost|127.0.0.1

>    -Djava.net.preferIPv4Stack=true

Note: Sometime it may also caused due to the issue with your Network configuration and device. So conform first that your windows firewall is allowing to connect your eclips to the outer world (internet). (Turn off the windows firewall for the instance of time that your computer take to install the file).

Admin1

I was getting the error while trying to connect for updates. Just did as in the above answer -

Window-> Preferences-> General-> Network

There the default provider was set as Native. I changed it to direct as my laptop didn't need to connect to any proxy.

Applied and it is working fine.

user_31804350
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