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Home » Modeling » M2T (model-to-text transformation) » [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0.2(Problems building the project's code when trying different ways to migrate the source code from one version to another)
[Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0.2 [message #1804736] Sat, 30 March 2019 19:36 Go to next message
Tomas Balderas is currently offline Tomas BalderasFriend
Messages: 64
Registered: July 2010
Member
Hello experts

I hope you can help me. I want to migrate an existing Acceleo project developed using Eclipse Photon/Acceleo 3.7.3/Java 9.0.4 to a different environment, Eclipse 2019-03/Acceleo 3.7.8/Java SDK 11.0.2. I tried the following:

1. I imported the existing Acceleo 3.7.3 project into the new environment's workspace using Import ... -> General -> Existing Projects Into Workspace. The creation of the project's files into the target workspace was successful, but I had different building problems in the Error Log console.

2. I created a new project in Eclipse 2019-03/Acceleo 3.7.8 and copied the contents of the only .mtl file in the Eclipse Photon/Acceleo 3.7.3 project into the corresponding .mtl file in the new project. This time, I got the following building errors:

MESSAGE: Errors running builder 'Acceleo Builder' on project 'org.eclipse.acceleo.module.firstSwiftGen'.

EXCEPTION STACK TRACE:
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.UnresolvedReferenceException: Unresolved reference '/0/name.1'. (platform:/resource/org.eclipse.acceleo.module.firstSwiftGen/bin/org/eclipse/acceleo/module/firstSwiftGen/main/swiftGen.emtl, 310, 72)
	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.acceleo.common.utils.ModelUtils.load(ModelUtils.java:391)
	at org.eclipse.acceleo.common.utils.ModelUtils.load(ModelUtils.java:356)
	at org.eclipse.acceleo.internal.ide.ui.builders.runner.CreateRunnableAcceleoOperation.run(CreateRunnableAcceleoOperation.java:129)
	at org.eclipse.acceleo.internal.ide.ui.builders.AcceleoBuilder.build(AcceleoBuilder.java:213)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:833)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:220)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:263)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:316)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:319)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:371)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:392)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:154)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:244)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: org.eclipse.emf.ecore.xmi.UnresolvedReferenceException: Unresolved reference '/0/name.1'. (platform:/resource/org.eclipse.acceleo.module.firstSwiftGen/bin/org/eclipse/acceleo/module/firstSwiftGen/main/swiftGen.emtl, 310, 72)
	at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleForwardReferences(XMLHandler.java:1197)
	at org.eclipse.emf.ecore.xmi.impl.XMLHandler.endDocument(XMLHandler.java:1282)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endDocument(AbstractSAXParser.java:746)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:539)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216)
	at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
	at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:324)
	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.acceleo.model.mtl.resource.EMtlResourceImpl.doLoad(EMtlResourceImpl.java:93)
	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)
	... 17 more


and

MESSAGE: Problems occurred when invoking code from plug-in: "org.eclipse.core.resources".

EXCEPTION STACK TRACE:
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.UnresolvedReferenceException: Unresolved reference '/0/name.1'. (platform:/resource/org.eclipse.acceleo.module.firstSwiftGen/bin/org/eclipse/acceleo/module/firstSwiftGen/main/swiftGen.emtl, 310, 72)
	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.acceleo.common.utils.ModelUtils.load(ModelUtils.java:391)
	at org.eclipse.acceleo.common.utils.ModelUtils.load(ModelUtils.java:356)
	at org.eclipse.acceleo.internal.ide.ui.builders.runner.CreateRunnableAcceleoOperation.run(CreateRunnableAcceleoOperation.java:129)
	at org.eclipse.acceleo.internal.ide.ui.builders.AcceleoBuilder.build(AcceleoBuilder.java:213)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:833)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:220)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:263)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:316)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:319)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:371)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:392)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:154)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:244)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: org.eclipse.emf.ecore.xmi.UnresolvedReferenceException: Unresolved reference '/0/name.1'. (platform:/resource/org.eclipse.acceleo.module.firstSwiftGen/bin/org/eclipse/acceleo/module/firstSwiftGen/main/swiftGen.emtl, 310, 72)
	at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleForwardReferences(XMLHandler.java:1197)
	at org.eclipse.emf.ecore.xmi.impl.XMLHandler.endDocument(XMLHandler.java:1282)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endDocument(AbstractSAXParser.java:746)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:539)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216)
	at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
	at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:324)
	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.acceleo.model.mtl.resource.EMtlResourceImpl.doLoad(EMtlResourceImpl.java:93)
	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)
	... 17 more


Does any of you know what I am doing wrong? Thank you very much in advance.

/TB

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1804739 is a reply to message #1804736] Sat, 30 March 2019 20:53 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
Hi

This looks suspiciously like https://bugs.eclipse.org/bugs/show_bug.cgi?id=543026 which made Acceleo 3.7.7 unusable. But 3.7.8 should have the fix.

However since you provide minimal details, that is all the help I can offer.

Regards

Ed Willink

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1804742 is a reply to message #1804739] Sat, 30 March 2019 21:37 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
Hi

The repro for the 3.7.7 bug on https://www.eclipse.org/forums/index.php/mv/msg/1097311/1801932/#msg_1801932 fails on 3.7.8 too!

EMF for 2019-03 has a subtle change in exactly the area that broke 3.7.7, but the change looks good. However today, I would recommend (2018-09 and) EMF 2.15 to use Acceleo.

Regards

Ed Willink

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1804743 is a reply to message #1804742] Sat, 30 March 2019 22:09 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
Hi

https://bugs.eclipse.org/bugs/show_bug.cgi?id=545963 raised.

Regards

Ed Willink

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1804750 is a reply to message #1804743] Sun, 31 March 2019 11:32 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
Hi

The actual bug is present in all versions of Acceleo but only Acceleo 3.7.7 and 3.7.8 are sensibly affected by concurrent versions of EMF. The EMF 2.16 change broke 3.7.7 fatally; any save failed. 3.7.8 is more subtle; only saves of overloads fail.)

Solution: Install the early EMF 2.18 fix from https://ci.eclipse.org/emf/job/gerrit/75/artifact/updates

(The above should remain available for about a week. Thereafter hopefully the fix will be in a latest nightly build available from https://download.eclipse.org/modeling/emf/emf/builds/index.html .)

Long term:

Acceleo <=3.7.7 is broken on EMF >= 2.16 (2018-12)
Acceleo 3.7.8 is broken on EMF 2.16 and EMF 2.17 (2018-12 and 2019-03).
Acceleo 3.7.8 is fixed by an early EMF 2.18 (2019-06).

Regards

Ed Willink

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1806492 is a reply to message #1804750] Thu, 09 May 2019 19:46 Go to previous messageGo to next message
Jad El-khoury is currently offline Jad El-khouryFriend
Messages: 61
Registered: August 2015
Member
I am facing a similar error message, once I migrated from Oxygen and Acceleo 3.7.2 to Eclipse2019-03 & Acceleo 3.7.8.
I normally don't need to install EMF. Do I need to explictly install the EMF plugins now (with the specific versions specified above)?

For what it's worth, I found that the error occurs on Acceleo queries that have the same name (but a different signature). Change the names of the queries avoided the error. But this is not a solution, since it requires a lot of code changes.

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1806509 is a reply to message #1806492] Fri, 10 May 2019 05:10 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
HI

Yes. Use the latest EMF Milestone build from https://download.eclipse.org/modeling/emf/emf/builds/index.html until you can migrate to Eclipse 2019-06 (not available till late June).

Regards

Ed Willink

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1808824 is a reply to message #1806509] Tue, 02 July 2019 11:53 Go to previous messageGo to next message
Vittorio Niespolo is currently offline Vittorio NiespoloFriend
Messages: 11
Registered: May 2019
Junior Member
Hi, i am using the following configuration:

- Eclipse Version: 2019-06 (4.12.0)
- EMF Version 2.18.0.v20190528-0845
- Acceleo Version: 3.7.8.201902261618

when i build i get:

java.lang.NullPointerException
	at org.eclipse.acceleo.internal.ide.ui.builders.runner.CreateRunnableAcceleoOperation.run(CreateRunnableAcceleoOperation.java:123)
	at org.eclipse.acceleo.internal.ide.ui.builders.AcceleoBuilder.build(AcceleoBuilder.java:213)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:833)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:220)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:263)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:316)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:319)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:371)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:392)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:154)


Is there something i am missing?

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1808827 is a reply to message #1808824] Tue, 02 July 2019 12:44 Go to previous messageGo to next message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
Hi

Your versions look sufficiently new to avoid the recent known issues. Perhaps you have a new one.

IIRC Acceleo can sometimes report uninteresting things and incremental builds may need encouragement.

Does the problem go away after a few cleans/rebuilds/restarts? If not you need to provide a repro.

Regards

Ed Willink

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1808828 is a reply to message #1808824] Tue, 02 July 2019 13:07 Go to previous messageGo to next message
Vittorio Niespolo is currently offline Vittorio NiespoloFriend
Messages: 11
Registered: May 2019
Junior Member
Thanks,
unfortunately clean, restart and so on didn't fix. Sometimes it builds sometimes it doesn't.
I found on this link that it is a recourring problem but can't access to details. https://www.eclipse.org/lists/acceleo-dev/msg00022.html

What you mean with repro? Which part of system can i provide to you?

[Updated on: Tue, 02 July 2019 13:10]

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Re: [Acceleo] Problems migrating a project from Acceleo 3.7.3/Java 9.0.4 to Acceleo 3.7.8/Java 11.0. [message #1808838 is a reply to message #1808828] Tue, 02 July 2019 18:21 Go to previous message
Ed Willink is currently offline Ed WillinkFriend
Messages: 7669
Registered: July 2009
Senior Member
Hi

By repro, I mean e.g. https://wiki.eclipse.org/OCL/ForumNetiquette

AERI is good when it works, but too often it's confusing. Unfortunately maintenance seems to have terminated and all my projects have 'no errors'. I'm not fooled that easily. Acceleo seems to have some and I think you refer to one with two previous reporters. Far from the most prolific. But the UI is broken so I cannot see the details either.

This problem looks to be well inside the Acceleo framework and so is probably beyond my casual fixing skills. But with a repro I might see the problem and fix it a lot sooner than the developers.

Regards

Ed Willink

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