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Maven Build Issues - Xtext 2.22 2020-06 Java11 [message #1848179]

Tue, 23 November 2021 21:59

Brandon Lewis

Messages: 250
Registered: May 2012

Senior Member

Never seen anything like this before:

[ERROR] Failed to execute goal org.eclipse.xtend:xtend-maven-plugin:2.22.0:compile (default) on project my.dsl: Execution default of goal org.eclipse.xtend:xtend-maven-plugin:2.22.0:compile failed: Unable to load the mojo 'compile' in the plugin 'org.eclipse.xtend:xtend-maven-plugin:2.22.0'. A required class is missing: org/eclipse/xtend/lib/macro/file/MutableFileSystemSupport

This occurs while trying to run the mwe. It appears to complete building my language and then crashes and things go very weird.

Strangely enough, it's working on my windows dev installation, but not my linux dev installation:

579 INFO XtextGenerator - Generating my.dsl.MyDsl
17179 INFO XtextGenerator - Generating common infrastructure
17210 INFO Workflow - Done.
[INFO]
[INFO] --- xtend-maven-plugin:2.22.0:compile (default) @ my.dsl ---
[WARNING] Error injecting: org.eclipse.xtend.maven.XtendCompile
com.google.inject.ProvisionException: Unable to provision, see the following errors:

1) Error injecting constructor, java.lang.NoClassDefFoundError: org/eclipse/xtend/lib/macro/file/MutableFileSystemSupport
at org.eclipse.xtend.maven.XtendCompile.<init>(Unknown Source)
while locating org.eclipse.xtend.maven.XtendCompile

1 error
at com.google.inject.internal.InternalProvisionException.toProvisionException(InternalProvisionException.java:226)

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Re: Maven Build Issues - Xtext 2.22 2020-06 Java11 [message #1848181 is a reply to message #1848179]

Wed, 24 November 2021 04:51

Christian Dietrich

Messages: 14434
Registered: July 2009

Senior Member

Maybe there is something broken in your local maven repo on that machine so maybe clear it or use a dedicated one for the build
Please also check the maven and java versions you are using

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
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Re: Maven Build Issues - Xtext 2.22 2020-06 Java11 [message #1848189 is a reply to message #1848181]

Wed, 24 November 2021 13:58

Brandon Lewis

Messages: 250
Registered: May 2012

Senior Member

Good tip and thank you.

Indeed my .m2/repository was mixed between different Eclipse/Java content.

Clearing it out and starting all over fixed this issue.

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