404 - Path /org/codehaus/mojo/exec-maven-plugin/1.2.1/exec-maven-plugin-1.2.1.pom not found in group repository "Public Repository Group" [id=public].

Path /org/codehaus/mojo/exec-maven-plugin/1.2.1/exec-maven-plugin-1.2.1.pom not found in group repository "Public Repository Group" [id=public].