Hi, I am try to a maven clean build on the SimpleApp archetype and get the following error message.
Maybe something in the pom.xml files? [INFO] [INFO] SimpleApp Parent ................................... SUCCESS [ 2.553 s] [INFO] SimpleApp Simple Module ............................ FAILURE [ 10.456 s] [INFO] SimpleApp Application .............................. SKIPPED [INFO] SimpleApp Webapp ................................... SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 14.053 s [INFO] Finished at: 2016-12-23T15:45:15+11:00 [INFO] Final Memory: 30M/981M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.datanucleus:datanucleus-maven-plugin:4.0.5:enhance (process-classes) on project myapp-module-simple: Error executing DataNucleus tool org.datanucleus.enhancer.DataNucleusEnhancer: InvocationTargetException: Plugin (Bundle) "org.datanucleus.api.jdo" is already registered. Ensure you dont have multiple JAR versions of the same plugin in the classpath. The URL "file:/d:/maven/repository/org/datanucleus/datanucleus-api-jdo/4.1.1/datanucleus-api-jdo-4.1.1.jar" is already registered, and you are trying to register an identical plugin located at URL "file:/D:/maven/repository/org/datanucleus/datanucleus-api-jdo/4.1.1/datanucleus-api-jdo-4.1.1.jar." -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :myapp-module-simple
