[david_j_baird]

Hi there,

I’ve been using Eclipse & MyEclipse for the past 6 months at my work (on Wintel), and I recently downloaded that latest MyEclipse for 2.1.x so I could trial it on my Mac at home. The installation seemed to go well, and I managed to deploy and run a ‘hello world’ servlet in Tomcat within about 15 minutes of installation. When I came back to it a few days later, however, whenever I tried to start the workbench the eclipse icon would ‘bounce’ for a second or so and then just stop, and no windows would appear (i.e. I cannot even start the Eclipse workbench now). I even tried executing it from a shell window. The .log file contains a number of the following messages:

!SESSION ———————————————————————-
!ENTRY org.eclipse.core.launcher 4 0 Apr 02, 2004 21:55:02.940
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.reflect.InvocationTargetException: java.lang.RuntimeException: Fatal Error: Unable to locate matching org.eclipse.core.runtime plug-in.
at org.eclipse.core.internal.boot.PlatformConfiguration.locateDefaultPlugins(PlatformConfiguration.java:2264)
at org.eclipse.core.internal.boot.PlatformConfiguration.<init>(PlatformConfiguration.java:903)
at org.eclipse.core.internal.boot.PlatformConfiguration.startup(PlatformConfiguration.java:1368)
at org.eclipse.core.internal.boot.InternalBootLoader.initialize(InternalBootLoader.java:582)
at org.eclipse.core.internal.boot.InternalBootLoader.startup(InternalBootLoader.java:1035)
at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:838)
at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)
at java.lang.reflect.Method.invoke(Native Method)
at org.eclipse.core.launcher.Main.basicRun(Main.java:291)
at org.eclipse.core.launcher.Main.run(Main.java:747)
at org.eclipse.core.launcher.Main.main(Main.java:583)
at java.lang.reflect.Method.invoke(Native Method)
at apple.launcher.LaunchRunner.run(LaunchRunner.java:88)
at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:50)
at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)

I have no idea what this means, but it seems that it is having trouble resolving plugin classes. I have made no changes to the configuration (at least none that I can recall), and the only thing that I can think of that has changed is that I rebooted the machine. Can anyone offer any assistance regarding this error message?

Cheers, David.

P.S. If it is relevant, I’m running it on a 12″ powerbook (G4), Mac OS 10.3.3 and Java 1.4.2_03

[Riyad Kalla]

David,
I’ve had this happen twice to me on a Linux machine and its actually an Eclipse issue. Try and move or erase your \workspace\.metadata\.config directory and try and start Eclipse. If that doesn’t work, try and move or erase your .metadata directory.

I’ve tried troubleshooting the problem before, and it took me hours and isn’t always the same. Something seems to happen with a corrupt cache of the plugin state or something, so when I clear our the plugin data, it works. Unfortunately this almost always meant me moving my workspace and letting Eclipse recreate it.

I’ve never had this problem on Windows though.

[Author]

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