As the log output shows the 'maven-compile-plugin' 'maven-compiler-plugin' is being used to compile java sources that rely upon the ivy-core. As the execution fails, one can check two things: - the `project-build-plugin` must execute the `share-engine-classpath` goal before the maven-compiler-plugin runs. You can check that by examining the normal maven log outputs, does the share-engine-classpath show up before the maven-compiler-plugin? are there any errors/warnings logged?: http://axonivy.github.io/project-build-plugin/release/8.0/share-engine-core-classpath-mojo.html - second; as you had this setup already with 7.X. Check that maven-compiler-plugin is correctly configured. Use the latest available version of the plugin and verify, that java source and target version are set to '11'. If you need more help, share the effective POM of this project > open 'pom.xml' in Maven Pom Editor of the Designer > click tab 'effective-pom'.

As the log output shows the 'maven-compile-plugin' is being used to compile java sources that rely upon the ivy-core. As the execution fails, one can check too thing:two things: - the `project-build-plugin` must execute the `share-engine-classpath` goal before the maven-compiler-plugin runs. You can check that by examining the normal maven log outputs, does the share-engine-classpath show up before the maven-compiler-plugin? are there any errors/warnings logged?: http://axonivy.github.io/project-build-plugin/release/8.0/share-engine-core-classpath-mojo.html - second; as you had this setup already with 7.X. Check that maven-compiler-plugin is correctly configured. Use the latest available version of the plugin and verify, that java source and target version are set to '11'. If you need more help, share the effective POM of this project > open 'pom.xml' in Maven Pom Editor of the Designer > click tab 'effective-pom'.

As the log output shows the 'maven-compile-plugin' is being used to compile java sources that rely upon the ivy-core. As the execution fails, one can check too thing: - the `project-build-plugin` must execute the `share-engine-classpath` goal before the maven-compiler-plugin runs. You can check that by examining the normal maven log outputs, does the share-engine-classpath show up before the maven-compiler-plugin? are there any errors/warnings logged?: http://axonivy.github.io/project-build-plugin/release/8.0/share-engine-core-classpath-mojo.html - second; as you had this setup already with 7.X. Check that maven-compiler-plugin is correctly configured. Use the latest available version of the plugin and verify, that java source and target version are set to '11'. If you need more help, share the effective POM of this project > open 'pom.xml' in Maven Pom Editor of the Designer > click tab 'effective-pom'.