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Build 20020425 Imported 11 external plug-ins (required to self-host JDT UI) - Auto-build on - not copying the resources - the plug-ins already existed in my workspace At the end I got a dialog: "Problem Occurred: Plug-in import" - Problem while importing plugin org.appache.lucene: org.appache.lucene does not exist. - Problem while importing plugin org.eclipse.ant.core: org.eclipse.ant.core does not exist. - Problem while importing plugin org.eclipse.sdk: org.eclipse.sdk does not exist. NOTE: I did the same with previous builds and it worked fine. LOG: !SESSION !ENTRY org.eclipse.team.cvs.core 4 4 Fri Apr 26 08:34:37 GMT+02:00 2002 !MESSAGE Interrupted IO: Cannot connect to host: dev.eclipse.org !ENTRY org.eclipse.pde.ui 4 0 Fri Apr 26 08:39:29 GMT+02:00 2002 !MESSAGE Plug-in Import !SUBENTRY 1 org.eclipse.pde.ui 4 969 Fri Apr 26 08:39:29 GMT+02:00 2002 !MESSAGE Problem while importing plugin "org.apache.lucene": org.apache.lucene does not exist. !SUBENTRY 1 org.eclipse.pde.ui 4 969 Fri Apr 26 08:39:29 GMT+02:00 2002 !MESSAGE Problem while importing plugin "org.eclipse.ant.core": org.eclipse.ant.core does not exist. !SUBENTRY 1 org.eclipse.pde.ui 4 969 Fri Apr 26 08:39:29 GMT+02:00 2002 !MESSAGE Problem while importing plugin "org.eclipse.sdk": org.eclipse.sdk does not exist.
This is an ellusive bug that appears without regularity. So far, I managed to narrow it down to classpath computation (error 969 comes from JDT Core and indicates that a Java element is missing). Based on the error message, it seems as though IJavaProject itself is missing. I have no idea why and why only for select projects.
*** This bug has been marked as a duplicate of 13977 ***