For some time now, I want to use the update functionality of eclipse. But every time, some (maybe obsolete) repositories cannot be found. Still I want the other parts to update, but this error just blocks everything.
How can I work around that problem, i.e. modify the list of checked repositories? Proxy settings are definitely correct, because 'Install new software' works fine.
Error Message:
Some sites could not be found. See the error log for more detail.
HTTP Server 'Service Unavailable': org.apache.maven/content.xml
HttpClient connection error response code 503.
No repository found at maven.apache.org.
No repository found at subclipse.tigris.org/.
No repository found at github.com/cbeust/testng-eclipse.git.
No repository found at download.eclipse.org/mat/1.0/update-site/.
No repository found at download.eclipse.org/tools/orbit/downloads/drops/R20100519200754/updateSite/.
HTTP Server 'Service Unavailable': org.apache.maven.plugins/content.xml
HttpClient connection error response code 503.
No repository found at github.com/cbeust/testng-eclipse.
No repository found at beust.com/eclipse.
Unable to read repository at dev2devclub.bea.com/updates/eclipse-3.3/wls-plugins/content.xml.
The server dev2devclub.bea.com failed to respond
(http:// and https:// removed due to hyperlink restriction)
From the About-dialog:
Version: Helios Service Release 2 / Build id: 20110301-1815
In the Preferences, type update into the search box at the top. Select Available Update Sites and there you can uncheck or remove the sites you don't want any more.