CODEWITHSUNDEEP
javaeclipse-rcpe4
Michael
Michael

Reputation: 4351

Eclipse e4 - Missing Constraint: Require-Capability: osgi.extender

When running my eclipse e4 application it shows that problems have been detected when validating.

Missing Constraint

This can be fixed by going to run configurations and selecting Add Required Plug-ins but this is more of a work around then a fix.

I've tried changing the versions and adding/removing plugins but can't figure out how to solve these errors.

A similar issue is mentioned here.

What could be causing this?

Upvotes: 5

Views: 8229

Answers (3)

SeHe
SeHe

Reputation: 41

I run into the same issue with the same behaviour, that if "add missing dependencies automatically" these kind of missing dependencies where gone. Adding org.apache.felix.src to launch config/product fixes this.

However: I have already the org.eclipse.e4.feature added to my product. If org.apache.felix.src is of such importance - why is it not put into the feature as dependency of the feature? Or asked the other way round: How should one resolve this without knowing that org.apache.felix.src is missing? There is no hint or something else that points to the missing dependency. Just the Require-Capability missing messages. Is there a way to do "bughunting" that leads to the missing dependency I am not aware of?

Or would this rather be an issue to be asked within the eclipse forum to get an answer from the developers?

Upvotes: 0

Michael
Michael

Reputation: 4351

I managed to find the missing plugins by comparing my run configuration before and after clicking Add Required Plug-ins.

There were 5 plugins missing that clicking Add Required Plug-ins in the product file didn't add. 

org.apache.felix.scr
org.eclipse.equinox.event
org.eclipse.compare.core
org.eclipse.fx.osgi
org.eclipse.team.core

After adding these plug-ins to the product file and manifest the missing constraints problem was resolved.

Upvotes: 6

Adam Horvath
Adam Horvath

Reputation: 1286

If you add org.eclipse.equinox.ds to your Required Plug-ins in MANIFEST.MF then this dialog will not show up at launch.

Upvotes: 9

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