Failed to reset proxy in Eclipse MARS

Question

I installed the CDT on top of the Eclipse MARS IDE for JAVA developers on Fedora 22. After rebooting, I cannot reset the proxy in Eclipse. When I click "Network Connections", an error message appears. Invalid values ​​are displayed on the displayed page.

After the error message

The active provider must be set to "Manual", but there is no drop-down list. Eclipse starts with the following messages:

org.eclipse.m2e.logback.configuration: The org.eclipse.m2e.logback.configuration component was activated before the state location was initialized. Try again after the state location is initialized. org.eclipse.m2e.logback.configuration: Log configuration file: /root/workspace/.metadata/.plugins/org.eclipse.m2e.logback.configuration/logback.1.6.2.20150902-0002.xml SLF4J: the class path contains several bindings SLF4J. SLF4J: found binding in [Bundleresource: //472.fwk12572413: 1 / org / SLF4J / osus / StaticLoggerBinder.class] SLF4J: found binding in [Bundleresource: //472.fwk12572413: 2 / org / SLF4J / osus / StaticLoggerBinder. class] SLF4J: see http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding like [Ch.qos.logback.classic.util.ContextSelectorStaticBinder] org.eclipse.m2e.logback.configuration: Initializing the log

There are no messages even after an error has occurred. Which configuration file should be changed to reset proxy?

Answer 1

Unfortunately, this is a known issue with the latest version of eclipse mars. Description can be found here: https://bugs.eclipse.org/bugs/show_bug.cgi?id=479075

Workaround: create the file "org.eclipse.core.net.prefs" in the $ {eclipse.install.dir} /configuration/.settings section with the content:

nonProxiedHosts=localhost 

Answer 2

Have you moved the installation directory? Since this exact same problem happened to me after I (brutally) moved the Eclipse installation directories.

Reinstalling fixes the problem.