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Home » Modeling » TMF (Xtext) » [XCore] XcoreLang.xcore content is not allowed in Prolog([XCore] XcoreLang.xcore content is not allowed in Prolog)
[XCore] XcoreLang.xcore content is not allowed in Prolog [message #1803637] Tue, 05 March 2019 22:15 Go to next message
Regent LArcheveque is currently offline Regent LArchevequeFriend
Messages: 92
Registered: May 2010
Member
Hi,

I browsed the newsgroups and web to find hints about how to solve this issue. This happens when I create and execute a standalone RCP. I already got a similar problem long time ago but I do not remember how I solved it. I am pretty sure there are missing dependencies in the RCP product. Despite this exception, the system works as usual. If someone has an idea, it would be really appreciated.

Thanks

Here is the detail of the exception.

Caused by: org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.xml.sax.SAXParseExceptionpublicId: platform:/plugin/or
g.eclipse.emf.ecore.xcore.lib/model/XcoreLang.xcore; systemId: platform:/plugin/org.eclipse.emf.ecore.xcore.lib/model/XcoreLang.xcore; lineNumber: 1; 
columnNumber: 1; Content is not allowed in prolog.
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:319)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:278)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:406)
	at org.eclipse.emf.ecore.plugin.RegistryReader$EPackageDescriptor$Dynamic.getEPackage(RegistryReader.java:250)
	... 42 more
Caused by: org.xml.sax.SAXParseExceptionpublicId: platform:/plugin/org.eclipse.emf.ecore.xcore.lib/model/XcoreLang.xcore; systemId: platform:/plugin/o
rg.eclipse.emf.ecore.xcore.lib/model/XcoreLang.xcore; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
	at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1436)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:999)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:333)
	at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:175)
	at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:261)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1563)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1342)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
	... 44 more
Re: [XCore] XcoreLang.xcore content is not allowed in Prolog [message #1803638 is a reply to message #1803637] Tue, 05 March 2019 22:17 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 13062
Registered: July 2009
Senior Member
can you please explain what you are exactly doing in your rcp?

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de
Re: [XCore] XcoreLang.xcore content is not allowed in Prolog [message #1803639 is a reply to message #1803638] Tue, 05 March 2019 22:18 Go to previous messageGo to next message
Christian Dietrich is currently offline Christian DietrichFriend
Messages: 13062
Registered: July 2009
Senior Member
besides that the emf forum is the place to be for xcore questions

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de
Re: [XCore] XcoreLang.xcore content is not allowed in Prolog [message #1803644 is a reply to message #1803639] Wed, 06 March 2019 02:44 Go to previous messageGo to next message
Ed Merks is currently offline Ed MerksFriend
Messages: 30351
Registered: July 2009
Senior Member
Normally a *.xcore resource should be loaded using an XcoreResource but that's created by the injector and is registered via the runtime module. I'm not sure your overall context where this happens. I've not seen this problem before. Something must be demand loading the registered package, but something that requires this should be loading using an Xtext resource set....
Re: [XCore] XcoreLang.xcore content is not allowed in Prolog [message #1803663 is a reply to message #1803639] Wed, 06 March 2019 12:44 Go to previous message
Regent LArcheveque is currently offline Regent LArchevequeFriend
Messages: 92
Registered: May 2010
Member
Oupps. I made a mistake. I wrongly selected TMF. Sorry.

I moved it under EMF:
https://www.eclipse.org/forums/index.php?t=post&msg_id=1803664&

[Updated on: Wed, 06 March 2019 12:53]

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