How to troubleshoot "Missing artifacts" issues in Maven

Check whether the artifacts given in the pom.xml file matches with the artifacts installed in the local repository (.m2/repositories).

I encountered this error once due to last update date appending to the artifact name as given below:

org.apache.stanbol.enhancer.servicesapi-0.11.0-20131021.093418-197.jar
org.apache.stanbol.enhancer.servicesapi-0.11.0-20131021.093418-197.jar.sha1
org.apache.stanbol.enhancer.servicesapi-0.11.0-20131021.093418-197.pom
org.apache.stanbol.enhancer.servicesapi-0.11.0-20131021.093418-197.pom.sha1
org.apache.stanbol.enhancer.servicesapi-0.11.0-SNAPSHOT.jar
org.apache.stanbol.enhancer.servicesapi-0.11.0-SNAPSHOT.pom

Where as pom.xml expected a different set of dependancies as given below:

   
      org.apache.stanbol
      org.apache.stanbol.enhancer.servicesapi
      0.11.0-SNAPSHOT
   

To resolve the issue, delete all the files in the local repository for the .jar file in question using following command.
rm /*

Then install the artifacts again using the goal clean install.
E.g, in Eclipse right click on the project > Run as > Maven build... > Goal "clean install" > Run