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No EObjectDescription could be found in Scope [message #1460231]

Mon, 03 November 2014 10:37

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hi all,

I have 2 DSLs created from the same grammar. In my grammar Cross linking is allowed for the same languages.

I am facing this exception :

java.lang.RuntimeException: No EObjectDescription could be found in Scope ....
	at org.eclipse.xtext.serializer.diagnostic.ISerializationDiagnostic$ExceptionThrowingAcceptor.accept(ISerializationDiagnostic.java:70)
	at org.eclipse.xtext.serializer.tokens.CrossReferenceSerializer.getCrossReferenceNameFromScope(CrossReferenceSerializer.java:146)
	at org.eclipse.xtext.serializer.tokens.CrossReferenceSerializer.serializeCrossRef(CrossReferenceSerializer.java:119)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.getToken(SequenceFeeder.java:453)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.accept(SequenceFeeder.java:214)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptAction(SequenceFeeder.java:292)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.accept(SequenceFeeder.java:95)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.accept(BacktrackingSemanticSequencer.java:405)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.createSequence(BacktrackingSemanticSequencer.java:441)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:85)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:108)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:122)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:51)
	at ............

and hence generator fails.

Note: I am able to execute perfectly through command line mode. I guess something wrong in the scope provider.

Can someone suggest me some solution ?

Thanks for any help Smile

Arshad

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Re: No EObjectDescription could be found in Scope [message #1460261 is a reply to message #1460231]

Mon, 03 November 2014 11:18

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

without any further hints it is hard to help.
the error basically says: you tro to serialize a cross ref to something that is not in the scope.

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: No EObjectDescription could be found in Scope [message #1470490 is a reply to message #1460261]

Wed, 12 November 2014 11:28

Arshad Adavani

Messages: 163
Registered: July 2013
Location: Bangalore

Senior Member

Hi Christian,
Sorry for the late response. I was not at office.
My problem actually got solved.
My scope provider was returning me null, had to improve scoping part.

Thanks for the help you provide Smile

Arshad

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