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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

It looks like the build is consuming a mix of Mylyn versions such as
which is causing the exception:

 org.eclipse.mylyn.tasks.ui/3.6.2.v20110826-0100/
 org.eclipse.mylyn.commons.identity/0.9.0.v20111206-0100

I would recommend replacing the weekly site
(http://download.eclipse.org/tools/mylyn/update/weekly) with the
release site of whichever Mylyn release the integration is targeting,
e.g.:

 http://download.eclipse.org/tools/mylyn/releases/3.6

I have meanwhile opened this bug to make adjustments for Indigo SR2:

 371626: prevent installations of o.e.m.tasks.ui 3.6 with
o.e.m.commons.identity 0.9
 https://bugs.eclipse.org/bugs/show_bug.cgi?id=371626

Steffen



On Wed, Feb 15, 2012 at 2:03 PM, Matthias Sohn
<matthias.sohn@xxxxxxxxxxxxxx> wrote:
> 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
>>  https://bugs.eclipse.org/bugs/show_bug.cgi?id=371599
>>
>
> Found the same problem in some EGit build logs on Hudson, it occurred
> during startup of EGit Mylyn UI tests:
> https://hudson.eclipse.org/hudson/job/egit/2073/console
>
> This only happened when building EGit against Indigo, same build against
> Helios or Galileo works as expected.
>
> --
> Matthias
>
> _______________________________________________
> mylyn-dev mailing list
> mylyn-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/mylyn-dev
>



-- 
Steffen Pingel
Senior Software Developer, Eclipse Mylyn
Mylyn Tasks Lead
http://tasktop.com


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