| Please define "it".  I have no idea of
      what the command line equivalent is of whatever Eclipse is doing
      during its automatic build.
 On 01/15/2016 05:40 PM, Manfred Moser wrote:
 
 
      
      
      
      Does it work on the command line with -U ?  Steve Cohen wrote on 2016-01-15 15:34: 
        The same behavior is experienced
          with NEW Maven projects created with Luna.  They immediately
          show these errors.  If Luna is closed and Kepler opened on the
          same workspace, and Maven->Update run, the errors
          disappear.
 On 01/15/2016 05:20 PM, Steve Cohen wrote:
 I'd been working with Eclipse Kepler.  I had
          several Maven projects there.  I connected to Maven Central
          through a corporate Nexus repository.  Everything worked just
          fine.
 Then I got Eclipse Luna and installed it.  Using the SAME
          workspace, with the same maven settings.xml that had the
          settings for the Nexus repository, I find that all Maven
          projects show errors that cannot be resolved by running
          Maven->Update.  All mention something about connections
          being refused by Maven Central.
 
 I closed Eclipse Luna and restarted Kepler on the same
          workspace.  (I was never running them simultaneously).  The
          same errors appeared, but now Maven->Update was successful
          in resolving them.
 
 I closed Kepler and restarted Luna on the same workspace. 
          Once again, the errors returned, and were not resolvable by
          Maven->Update.
 
 Here is one of the errors:
 
 CoreException:
            Could not get the value for parameter compilerId for plugin
            execution default-compile: PluginResolutionException: Plugin
            org.apache.maven.plugins:maven-compiler-plugin:3.1 or one of
            its dependencies could not be resolved: The following
            artifacts could not be resolved:
            org.apache.maven:maven-plugin-api:jar:2.0.9,
            org.apache.maven:maven-artifact:jar:2.0.9: Failure to
            transfer org.apache.maven:maven-plugin-api:jar:2.0.9 from
          
            http://mavencentral.it.whatever.com:8084/nexus/content/groups/whatever-public-group
          was
            cached in the local repository, resolution will not be
            reattempted until the update interval of nexus has elapsed
            or updates are forced. Original error: Could not transfer
            artifact org.apache.maven:maven-plugin-api:jar:2.0.9 from/to
            nexus (http://mavencentral.it.whatever.com:8084/nexus/content/groups/whatever-public-group):
            Connection refused: connect
 
 What might the problem be?
 
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