Maven Assembly Plug-in Listed Twice

Steps to reproduce

[WARNING] Some problems were encountered while building the effective model for org.opencastproject.assemblies:opencast-dist-allinone:karaf-assembly:2.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-assembly-plugin @ org.opencastproject.assemblies:opencast-dist-allinone:[unknown-version], /home/rof/src/, line 98, column 15
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.


Tobias Schiebeck
November 10, 2015, 1:20 PM

Merged PR 696 as 89062a7

Fixed and reviewed
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Lars Kiesow


Lars Kiesow


Build Error