| Old GMF application confilicting with Papyrus [message #1702301] |
Tue, 21 July 2015 08:45  |
Eclipse User |
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I have a GMF-based eclipse plug-in I have been developing in Kepler. I recently upgraded to Mars. I needed to edit the ecore model, but the old graphical editor from Kepler is not part of the Mars release. So I installed the papyrus-based editor.
Everything was fine until I went to launch my plug-in in the debugger and use it to place a node on the diagram (this is all GMF-generated code). I started getting errors relating to CSSDiagram (which apparently is part of Papyrus).
I then uninstalled Papyrus from my Mars environment, cleaned up both my development workspace and my target workspace, and re-launched the debugger with my plug-in. Same problem.
I then did a fresh install of the Mars Modeling release, adding GMF and OCL (which my plug-in needs). It now works fine.
Can anyone explain to me:
a) How the installation of Papyrus altered the execution of my plug-in by using CSS Diagram instead of Diagram as the root?
b) How to avoid this conflict?
c) Why the uninstall of Papyrus did not fix the problem?
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 Re: Old GMF application confilicting with Papyrus [message #1702556 is a reply to message #1702301] |
Thu, 23 July 2015 04:18  |
| Eclipse User |
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Hi Paul C. Brown,
I can't not response to your question a) and c) exactly, because I don't use Papyrus actually but If you have problems with the Ecore Diagram Editor, is posible that you don't have selected the correct editor for your ecore_diagram file in your Package Explorer.
Check this doing right click over the *.ecore_diagram file -> Open With -> and select always by default "Ecore GMF Editor" to avoid use editors from other frameworks or plug-ins, This editor is the official Ecore Graphical Editor from the GMF Framework.
Maybe the uninstall of Papyrus Plug-ins might return inconsistent your Eclipse Installation. This situation if possible, if you erase the plug-ins of Papyrus directly from the eclipse plug-ins folder. I don't know if u do this.
In Eclipse exist a helper to remove plug-ins, from Help-> Installation Details -> Installation History. In the Previous configurations, we can review all installations of our Eclipse and come back to a stable installation, clicking in Revert.
Regards,
[Updated on: Thu, 23 July 2015 04:22] by Moderator |
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I finally figured out what was going on. When you create a GMF plug-in, one of the things generated is a view provider (xxxViewProvider). In the plugin.xml file for the plug-in, an entry for this view provider is made under the extension org.eclipse.gmf.runtime.diagram.core.viewProviders. Unfortunately, this entry is made with a priority of Low. If you have Papyrus also installed, it also contributes a view provider. In my case, the Papyrus view provider was being found before mine, hence the problem. The fix is to change the priority of your view provider (I set mine to Medium). After that, everything worked fine.