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Re: [mylyn-dev] Workbench fails to start: Plug-in org.eclipse.mylyn.tasks.ui was unable to load class org.eclipse.mylyn.internal.tasks.ui.TaskTrimWidget

2012/2/15 Steffen Pingel <steffen.pingel@xxxxxxxxxxx>
Hi Matthias,
 
I wanted to just update to latest nightly of JGit/EGit but I missed to
deselect the option to also check for updates on all repositories.
No, I didn't watch the installation so I don't know what it picked up.

It looks like it updated plug-ins only and none of the features so the install dialog probably wouldn't have shown anything anyways. 

Is there any way to find this out if the workbench can't start anymore ? 

This should be captured in the profile xml files under p2/org.eclipse.equinox.p2.engine/profileRegistry/SDKProfile.profile/. You can in theory diff the latest two versions to see what changed. 

I believe the information you already provided is sufficient to understand the problem and make changes to avoid it in the future. I have opened this bug to track it:

 371599: Workbench fails to start: Plug-in org.eclipse.mylyn.tasks.ui was unable to load class org.eclipse.mylyn.internal.tasks.ui.TaskTrimWidget


Found the same problem in some EGit build logs on Hudson, it occurred
during startup of EGit Mylyn UI tests:

This only happened when building EGit against Indigo, same build against 
Helios or Galileo works as expected.

--
Matthias

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