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error occurred during: "Computing Model Differences" [message #1268221]

Mon, 10 March 2014 03:56

Eclipse User

I have just checked out Luna 4.4M5 modeling package which includes EMF Compare.
I checked out my project containing the ecore models to compare from SVN and tried to compare with "base from working copy" after a simple change (just added an EString attribute to an EClass).
The comparison fails with these error messages:

An internal error occurred during: "Computing Model Differences".
Path must include project and resource name: /test.ecore

What do I miss here?

Re: error occurred during: "Computing Model Differences" [message #1268224 is a reply to message #1268221]

Mon, 10 March 2014 04:01

Eclipse User

And the stack trace from the error log:

java.lang.IllegalArgumentException: Path must include project and resource name: /core.ecore
	at org.eclipse.core.runtime.Assert.isLegal(Assert.java:63)
	at org.eclipse.core.internal.resources.Workspace.newResource(Workspace.java:2157)
	at org.eclipse.core.internal.resources.Container.getFile(Container.java:208)
	at org.eclipse.emf.compare.ide.utils.ResourceUtil.createURIFor(ResourceUtil.java:245)
	at org.eclipse.emf.compare.ide.internal.utils.NotLoadingResourceSet.loadResource(NotLoadingResourceSet.java:121)
	at org.eclipse.emf.compare.ide.internal.utils.NotLoadingResourceSet.create(NotLoadingResourceSet.java:72)
	at org.eclipse.emf.compare.ide.ui.internal.logical.ComparisonScopeBuilder.createScope(ComparisonScopeBuilder.java:374)
	at org.eclipse.emf.compare.ide.ui.internal.logical.ComparisonScopeBuilder.createMinimizedScope(ComparisonScopeBuilder.java:349)
	at org.eclipse.emf.compare.ide.ui.internal.logical.ComparisonScopeBuilder.build(ComparisonScopeBuilder.java:142)
	at org.eclipse.emf.compare.ide.ui.internal.logical.ComparisonScopeBuilder.create(ComparisonScopeBuilder.java:173)
	at org.eclipse.emf.compare.ide.ui.internal.structuremergeviewer.EMFCompareStructureMergeViewer.compareInputChanged(EMFCompareStructureMergeViewer.java:642)
	at org.eclipse.emf.compare.ide.ui.internal.structuremergeviewer.EMFCompareStructureMergeViewer$CompareInputChangedJob.run(EMFCompareStructureMergeViewer.java:131)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

Comparing two versions (of the same model) from the local history seems to work.

Re: error occurred during: "Computing Model Differences" [message #1270106 is a reply to message #1268224]

Wed, 12 March 2014 09:58

Eclipse User

Hi,

Comparing files located on an SVN repository is not yet possible, with issues such as descibed here or there on bugzilla happening when you try.

Yours is actually the second of these two.

We are focusing our efforts on Git support for now, but you might be interested in looking at my fourth comment on bug 397955 if you wish to try and fix this yourself (we'll happily look at patches fixing this issue). That being said, if you cannot spend time on understanding our code base to contribute a fix, you could move this bug forward by contacting Obeo for sponsored work (see also our support page).

Laurent Goubet
Obeo

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