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Eclipse 3.0 not recognizing plugins

Derrick Shadel

Joined: Jul 07, 2004
Posts: 1
In the previous version of Eclipse (3M8) I could simply unzip a plugin into the eclipse\plugins folder and the next time I launched Eclipse it would install the plugin. I just installed the released version of 3.0 and after unzipping a plugin when I launch Eclipse it does not recognize the new plugin. I discovered that the plugin was not being added to the list of plugins in the eclipse\configuration\org.eclipse.osgi\manifests folder. I have also found (after some tedious testing) that if I delete the last.config.stamp in the eclipse\configuration folder then Eclipse will install the plugin. It almost seems like Eclipse thinks everything is up-to-date even though I have added a plugin. I am on Windows XP.

Has anyone else had this problem? Am I supposed to install plugins in a different manner (I am still fairly new to Eclipse)?

Thanks for any info.

Derrick Shadel
V Bose
Ranch Hand

Joined: Jul 10, 2003
Posts: 113
I have a similar problem, but do not see a last.config.stamp file ?
Sanjaya Sugiarto
Ranch Hand

Joined: Mar 25, 2004
Posts: 229
I believe the Eclipse 3 has different plug-ins scheme. Yes, you should just unzip it, but the plug-ins for Eclipse 2.x are incompatible with the Eclipse 3 and vice versa.

<a href="" target="_blank" rel="nofollow">Business Information Technology - Hochschule Furtwangen University, Germany</a>
Bruce Jin
Ranch Hand

Joined: Sep 20, 2001
Posts: 672
The stamp file is in \eclipse\configuration\org.eclipse.update folder.
Delete it will make plugin work. I think this is a bug in 3.0

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Dan Kehn
Dastardly Dan the Author
Ranch Hand

Joined: Jun 11, 2003
Posts: 120
To improve performance, Eclipse 3.0 no longer checks the timestamps of the plugin.xml files under the assumption that most users won't be changing them. As a plug-in developer, you now have to explicitly tell the Platform Runtime by specifying -clean on startup (one time only). Deleting all the subdirectories in the configuration directory will have a similar effect.

This missed the online documentation; you can see the PDE specifies it by checking out the parameters passed to Eclipse when launching the Run-time Workbench in the debugger.

-- Dan

Co-author of <a href="" target="_blank" rel="nofollow">The Java Developer's Guide to Eclipse</a>, 2nd Edition<br />(Yahoo group <a href="" target="_blank" rel="nofollow">JDG2E</a>)
I agree. Here's the link:
subject: Eclipse 3.0 not recognizing plugins
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