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XText Generator making random mistakes while generating java classes [message #1796034]

Thu, 04 October 2018 07:37

Eclipse User

I have a quite large grammar.

When I generate the Xtext Artifacts, many many java classes are generated. Generators run successfully. However, almost always some of the classes which are generated have random mistakes in them, which makes them unable to compile.

It is usually only one or two .java classes among almost a hundred which have mistakes, and it is not the same classes, the mistakes seem to come randomly.

Bit it is usually inside the the package implementation class.

Here is an example mistake:

  public EClass getActionDeclaration()
  {
    if (actionDeclarationEClass == null)
    {
      actionDeclarationEClass = (EClass)EPackage.Registry.INSTANCE.getEPackage(HmiPackage.eNS_URI).getEClassifiers().g(96);
    }
    return compositeActionEClass;
  }

this code should actually look like this:

  public EClass getActionDeclaration()
  {
    if (actionDeclarationEClass == null)
    {
      actionDeclarationEClass = (EClass)EPackage.Registry.INSTANCE.getEPackage(HmiPackage.eNS_URI).getEClassifiers().get(92);
    }
    return actionDeclarationEClass;
  }

so the instead of "get" there is "g"

Here is my Workflow, if that helps:

module de.bmw.rhmi.GenerateHmi

import org.eclipse.xtext.xtext.generator.*
import org.eclipse.xtext.xtext.generator.model.project.*
import org.eclipse.emf.mwe.utils.*

var rootPath = ".."
var projectName = "de.bmw.rhmi"
var runtimeProject = "../${projectName}"

Workflow {

	bean = StandaloneSetup {
		scanClassPath = true
		platformUri = "${rootPath}"
		registerGenModelFile = "platform:/resource/de.bmw.rhmi.resource/model/generated/Strings.genmodel"
		registerGenModelFile = "platform:/resource/de.bmw.rhmi.resource/model/Image.genmodel"
		registerGenModelFile = "platform:/resource/de.bmw.rhmi/model/generated/App.genmodel"
		registerGenModelFile = "platform:/resource/de.bmw.rhmi/model/generated/Hmi.genmodel"
		registerGeneratedEPackage = "de.bmw.rhmi.resource.image.ImagePackage"
		registerGeneratedEPackage = "de.bmw.rhmi.resource.strings.StringsPackage"
	}

	component = XtextGenerator {
		configuration = {
			project = StandardProjectConfig {
				baseName = "de.bmw.rhmi"
				rootPath = rootPath
				runtimeTest = {
					enabled = true
				}
				genericIde = {
					enabled = true
				}
				mavenLayout = true
			}
			code = {
				encoding = "UTF-8"
				lineDelimiter = "\n"
				fileHeader = "/*\n * generated by Xtext \${version}\n */"
			}
		}

		language = XtextGeneratorLanguage {
			name = "de.bmw.rhmi.App"
			fileExtensions = "rapp"
			referencedResource = "platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel"
			fragment = grammarAccess.GrammarAccessFragment2 {}
			fragment = ecore.EMFGeneratorFragment2 {}
			fragment = serializer.SerializerFragment2 {}
			fragment = resourceFactory.ResourceFactoryFragment2 {}
			fragment = parser.antlr.XtextAntlrGeneratorFragment2 {}
			fragment = validation.ValidatorFragment2 {}
			fragment = scoping.ImportNamespacesScopingFragment2 {}
			fragment = exporting.QualifiedNamesFragment2 {}
			fragment = builder.BuilderIntegrationFragment2 {}
			fragment = formatting.Formatter2Fragment2 {}
			fragment = ui.labeling.LabelProviderFragment2 {}
			fragment = ui.outline.QuickOutlineFragment2 {}
			fragment = ui.outline.OutlineTreeProviderFragment2 {}
			fragment = ui.quickfix.QuickfixProviderFragment2 {}
			fragment = ui.contentAssist.ContentAssistFragment2 {}
			fragment = junit.JUnitFragment {}
			fragment = ui.refactoring.RefactorElementNameFragment2 {}
			fragment = ui.templates.CodetemplatesGeneratorFragment2 {}
			fragment = ui.compare.CompareFragment2 {}
			fragment = idea.parser.antlr.XtextAntlrIDEAGeneratorFragment {}
			fragment = ui.projectWizard.TemplateProjectWizardFragment {}
			fragment = ui.fileWizard.TemplateFileWizardFragment {}
		}

		language = XtextGeneratorLanguage {
			referencedResource = "platform:/resource/de.bmw.rhmi/src/main/java/de/bmw/rhmi/App.xtext"
			name = "de.bmw.rhmi.Hmi"
			fileExtensions = "hmi"
			referencedResource = "platform:/resource/org.eclipse.xtext.xbase/model/Xbase.genmodel"
			fragment = grammarAccess.GrammarAccessFragment2 {}
			fragment = ecore.EMFGeneratorFragment2 {}
			fragment = serializer.SerializerFragment2 {}
			fragment = resourceFactory.ResourceFactoryFragment2 {}
			fragment = parser.antlr.XtextAntlrGeneratorFragment2 {}
			fragment = validation.ValidatorFragment2 {}
			fragment = scoping.ImportNamespacesScopingFragment2 {}
			fragment = exporting.QualifiedNamesFragment2 {}
			fragment = builder.BuilderIntegrationFragment2 {}
			fragment = formatting.Formatter2Fragment2 {}
			fragment = ui.labeling.LabelProviderFragment2 {}
			fragment = ui.outline.QuickOutlineFragment2 {}
			fragment = ui.outline.OutlineTreeProviderFragment2 {}
			fragment = ui.quickfix.QuickfixProviderFragment2 {}
			fragment = ui.contentAssist.ContentAssistFragment2 {}
			fragment = junit.JUnitFragment {}
			fragment = ui.refactoring.RefactorElementNameFragment2 {}
			fragment = ui.templates.CodetemplatesGeneratorFragment2 {}
			fragment = ui.compare.CompareFragment2 {}
			fragment = idea.parser.antlr.XtextAntlrIDEAGeneratorFragment {}
			fragment = ui.projectWizard.TemplateProjectWizardFragment {}
			fragment = ui.fileWizard.TemplateFileWizardFragment {}
		}
	}
}

Why is this happening?

My Idea was to increase the timeout variable for the generator, but I am not sure if that has to do with it or how to do it.

Re: XText Generator making random mistakes while generating java classes [message #1796035 is a reply to message #1796034]

Thu, 04 October 2018 07:44

Eclipse User

Can you please ask in the emf forum what could cause this?
PS there is a slow down the the forum to avoid spamming so please be patient when creating questions to avoid duplicate posts

Re: XText Generator making random mistakes while generating java classes [message #1796038 is a reply to message #1796035]

Thu, 04 October 2018 07:58

Eclipse User

PS does this happen from maven or from eclipse ?
Which Xtext and emf version do you use?

Re: XText Generator making random mistakes while generating java classes [message #1796040 is a reply to message #1796038]

Thu, 04 October 2018 08:06

Eclipse User

not sure what you mean if it happens from maven or eclipse

I am using xtext version 2.14.0

All I do is click generate xtext artifacts, and then the classes are generated.

But now I see that there is always a problem in the HmiPackage.java class

Re: XText Generator making random mistakes while generating java classes [message #1796046 is a reply to message #1796040]

Thu, 04 October 2018 08:31

Eclipse User

Yes that class is generated by the emf generator.
As written in emf forum. Make sure you don't run two workflows at the same time
Wait for the build to finish before calling generate Xtext artifacts again

[Updated on: Thu, 04 October 2018 08:32] by Moderator

Re: XText Generator making random mistakes while generating java classes [message #1796067 is a reply to message #1796046]

Thu, 04 October 2018 11:59

Eclipse User

I think i found the solution
it has to do with the runTimeVersion Attribute of the genmodels.

I realize that when the genmodels are generated by xtext, runtime version is automatically set to 2.14, which causes the genmodels to be corrupted (i.e. when I try to open them, I get an illegal runtimeVersion error)
They only get better if I set the runtimeVersion Attribute manually to 2.2

If I do this (change the runtime version), delete everything in the xtext-gen folder, and regenerate the model code, everything works as expected.

How can I make it so that, when xtext generates the genmodels, the runtime version is automatically 2.2? Or that 2.14 is an accepted runtime Version?

Does this have to do with the EMF Version not being in sync ? I don't understand

[Updated on: Thu, 04 October 2018 12:10] by Moderator

Re: XText Generator making random mistakes while generating java classes [message #1796070 is a reply to message #1796067]

Thu, 04 October 2018 12:18

Eclipse User

How can I change the runtime version of my EMF Generator

[Updated on: Thu, 04 October 2018 12:19] by Moderator

Re: XText Generator making random mistakes while generating java classes [message #1796074 is a reply to message #1796070]

Thu, 04 October 2018 13:14

Eclipse User

You should be able to set emfRuntimeVersion on the emf fragment

Re: XText Generator making random mistakes while generating java classes [message #1796078 is a reply to message #1796074]

Thu, 04 October 2018 13:57

Eclipse User

thanks, but what I don't understand is, when the runtimeVersion is set to 2.14 (automatically by xtext), why do you get an IllegalArgumentException saying
the value is not a valid enumerator of GenRuntimeVersion, when I try to open the generated genModel file by xtext

Re: XText Generator making random mistakes while generating java classes [message #1796079 is a reply to message #1796078]

Thu, 04 October 2018 14:00

Eclipse User

I don't know which emf you have configured in eclipse and which is pulled by gradle
It might be that gradle does (and will if you don't use xtext 2.15) pull a newer emf version
But you still might have installed emf 2.12 in eclipse

Re: XText Generator making random mistakes while generating java classes [message #1796081 is a reply to message #1796079]

Thu, 04 October 2018 14:32

Eclipse User

Hi

An inconsistent EMF or an unwise runtime version might give consistently no generation or consistently unhelpful code, but the kind of error you identify seems very unlikely to be from this cause.

Regards

Ed Willink

Re: XText Generator making random mistakes while generating java classes [message #1796116 is a reply to message #1796081]

Fri, 05 October 2018 08:20

Eclipse User

the issue is resolved, I have no idea why, but

I imported the project as a new gradle project,.

removed this line in build gradle:

compile group: 'org.eclipse.xtext', name: 'org.eclipse.xtext.common.types', version: '2.14.0'

now the code generator is not making any mistake

Re: XText Generator making random mistakes while generating java classes [message #1796124 is a reply to message #1796116]

Fri, 05 October 2018 10:01

Eclipse User

This sounds bogus to me. But we would still need a reproducible example and a github issue to investigate

Re: XText Generator making random mistakes while generating java classes [message #1809211 is a reply to message #1796124]

Thu, 11 July 2019 12:25

Eclipse User

I get the same error with Xtext 2.18.0 and EMF 2.18.0:

This is the stack trace of the Maven build:

Jul 11, 2019 6:09:33 PM org.eclipse.emf.mwe.utils.StandaloneSetup setResourceSet
INFORMATION: Using resourceSet registry. The registered Packages will not be registered in the global EPackage.Registry.INSTANCE!
597  ERROR Mwe2Launcher       - Problems running workflow de.abas.screen.smartscreen.GenerateSmartScreen: org.eclipse.emf.ecore.xmi.IllegalV
alueException: Value '2.18' is not legal. (platform:/resource/de.abas.screen.model.screen/model/screen.genmodel, 9, 71)
java.lang.RuntimeException: Problems running workflow de.abas.screen.smartscreen.GenerateSmartScreen: org.eclipse.emf.ecore.xmi.IllegalValue
Exception: Value '2.18' is not legal. (platform:/resource/de.abas.screen.model.screen/model/screen.genmodel, 9, 71)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:104)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:78)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:36)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:282)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.IllegalValueException:
 Value '2.18' is not legal. (platform:/resource/de.abas.screen.model.screen/model/screen.genmodel, 9, 71)
        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.xtext.resource.XtextResourceSet.getResource(XtextResourceSet.java:265)
        at org.eclipse.xtext.xtext.generator.XtextGeneratorResourceSetInitializer.loadResource(XtextGeneratorResourceSetInitializer.java:51)

        at org.eclipse.xtext.xtext.generator.XtextGeneratorResourceSetInitializer.lambda$initialize$0(XtextGeneratorResourceSetInitializer.j
ava:41)
        at java.util.ArrayList.forEach(ArrayList.java:1257)
        at org.eclipse.xtext.xtext.generator.XtextGeneratorResourceSetInitializer.initialize(XtextGeneratorResourceSetInitializer.java:43)
        at org.eclipse.xtext.xtext.generator.XtextGeneratorLanguage.initialize(XtextGeneratorLanguage.java:218)
        at org.eclipse.xtext.xtext.generator.XtextGenerator.initialize(XtextGenerator.java:185)
        at org.eclipse.xtext.xtext.generator.XtextGenerator.checkConfigurationInternal(XtextGenerator.java:139)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent2.checkConfiguration(AbstractWorkflowComponent2.java:22)
        at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.preInvoke(Mwe2Bridge.java:68)
        at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.preInvoke(AbstractWorkflowComponent.java:207)
        at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.preInvoke(AbstractCompositeWorkflowComponent.java:30)
        at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
        at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:102)
        ... 10 more
Caused by: org.eclipse.emf.ecore.xmi.IllegalValueException: Value '2.18' is not legal. (platform:/resource/de.abas.screen.model.screen/model
/screen.genmodel, 9, 71)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2697)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setAttribValue(XMLHandler.java:2751)
        at org.eclipse.emf.ecore.xmi.impl.SAXXMIHandler.handleObjectAttribs(SAXXMIHandler.java:79)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFactory(XMLHandler.java:2229)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1366)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1504)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1026)
        at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:78)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1008)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:719)
        at org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHandler.java:190)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)
        at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:745)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1359)

        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(XMLDocumentScannerImpl.java:1289
)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.
java:3132)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:852)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:842)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:771)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:327)
        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:1518)
        at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1297)
        at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259)
        at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
        ... 24 more
Caused by: java.lang.IllegalArgumentException: The value '2.18' is not a valid enumerator of 'GenRuntimeVersion'
        at org.eclipse.emf.codegen.ecore.genmodel.impl.GenModelFactoryImpl.createGenRuntimeVersionFromString(GenModelFactoryImpl.java:394)
        at org.eclipse.emf.codegen.ecore.genmodel.impl.GenModelFactoryImpl.createFromString(GenModelFactoryImpl.java:114)
        at org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createFromString(XMLHelperImpl.java:1615)
        at org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.setValue(XMLHelperImpl.java:1156)
        at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2692)
        ... 54 more

In my genmodel I set the runtime version to 2.18.

Re: XText Generator making random mistakes while generating java classes [message #1809212 is a reply to message #1809211]

Thu, 11 July 2019 12:46

Eclipse User

are you sure you use consisten versions? xtext by default uses emf 2.12 via the dev bom.
see https://github.com/eclipse/xtext/issues/1282

=> what do you do to use emf 2.18

Re: XText Generator making random mistakes while generating java classes [message #1809231 is a reply to message #1809212]

Fri, 12 July 2019 03:42

Eclipse User

I sat the EMF runtime version in my genmodel to 2.18.

You mean, if I set it to 2.14 then Xtext has no problems anymore?

Re: XText Generator making random mistakes while generating java classes [message #1809232 is a reply to message #1809231]

Fri, 12 July 2019 04:08

Eclipse User

counter question: how do you invoke the workflow?

Re: XText Generator making random mistakes while generating java classes [message #1809235 is a reply to message #1809232]

Fri, 12 July 2019 04:24

Eclipse User

I invoke the workflow with Maven/Tycho.

I changed to 2.14 but I get the same error message: Caused by: java.lang.IllegalArgumentException: The value '2.14' is not a valid enumerator of 'GenRuntimeVersion'

Re: XText Generator making random mistakes while generating java classes [message #1809236 is a reply to message #1809235]

Fri, 12 July 2019 04:25

Eclipse User

Where is this enumeration definied?

Re: XText Generator making random mistakes while generating java classes [message #1809237 is a reply to message #1809236]

Fri, 12 July 2019 04:29

Eclipse User

I must use EMF 2.18 because of a fixed bug where EMF genmodels could not depend on Xcore models.

[Updated on: Fri, 12 July 2019 04:30] by Moderator

Re: XText Generator making random mistakes while generating java classes [message #1809238 is a reply to message #1809237]

Fri, 12 July 2019 04:43

Eclipse User

When I call the MWE2 Workflow from Eclipse directly then it generates everything as expected. But not from Maven. It worked with Maven before I used EMF 2.18.

[Updated on: Fri, 12 July 2019 04:44] by Moderator

Re: XText Generator making random mistakes while generating java classes [message #1809239 is a reply to message #1809238]

Fri, 12 July 2019 04:51

Eclipse User

as i said: i maven xtext uses emf 2.12 (if you do not explicitely override this)

Re: XText Generator making random mistakes while generating java classes [message #1809241 is a reply to message #1809239]

Fri, 12 July 2019 04:53

Eclipse User

How can I override it?

Re: XText Generator making random mistakes while generating java classes [message #1809242 is a reply to message #1809241]

Fri, 12 July 2019 05:08

Eclipse User

have a look where the workflow is invoked. there is a dependency list

Re: XText Generator making random mistakes while generating java classes [message #1809243 is a reply to message #1809242]

Fri, 12 July 2019 05:09

Eclipse User

What from EMF is needed by the Xtext generator?

Re: XText Generator making random mistakes while generating java classes [message #1809246 is a reply to message #1809243]

Fri, 12 July 2019 05:34

Eclipse User

you need to find out that yourself sorry. you can find here a list of potential candidates:
https://github.com/eclipse/xtext-lib/blob/master/releng/org.eclipse.xtext.dev-bom/pom.xml

Re: XText Generator making random mistakes while generating java classes [message #1809247 is a reply to message #1809246]

Fri, 12 July 2019 06:00

Eclipse User

Thanks for the hint!

I found following working dependencies configuration:

<dependencies>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.mwe.utils</artifactId>
		<version>1.4.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.mwe2.runtime</artifactId>
		<version>2.10.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.mwe2.launch</artifactId>
		<version>2.10.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.xtext</groupId>
		<artifactId>org.eclipse.xtext.xtext.generator</artifactId>
		<version>2.18.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.xtext</groupId>
		<artifactId>org.eclipse.xtext.xbase</artifactId>
		<version>2.18.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.xtext</groupId>
		<artifactId>xtext-antlr-generator</artifactId>
		<version>[2.1.1, 3)</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.codegen</artifactId>
		<version>2.16.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.codegen.ecore</artifactId>
		<version>2.18.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.common</artifactId>
		<version>2.16.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.ecore</artifactId>
		<version>2.18.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.ecore.change</artifactId>
		<version>2.14.0</version>
	</dependency>
	<dependency>
		<groupId>org.eclipse.emf</groupId>
		<artifactId>org.eclipse.emf.ecore.xmi</artifactId>
		<version>2.16.0</version>
	</dependency>
</dependencies>

I.e. Xtext 2.18.0 and EMF 2.18.0 work together with these dependencies.

[Updated on: Fri, 12 July 2019 06:02] by Moderator

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