After updating IntelliJ from version 12 to 13, the following Maven-related plugins cannot be resolved:
org.apache.maven.plugins:maven-clean-plugin:2.4.1
org.a
I had this problem for years with the maven-deploy plugin, and the error showed up even though I was not directly including the plugin in my POM. As a work-around I had to force include the plugin with a version into my POMs plugin section just to remove the red-squiggly.
After trying every solution on Stack Overflow, I found the problem: Looking into my .m2/repository/org/apache/maven/plugins/maven-deploy-plugin
directory there was a version 'X.Y' along with '2.8.2' et al. So I deleted the entire maven-deploy-plugin directory, and then re-imported my Maven project.
So it seems the issue is an IntelliJ bug in parsing the repository. I would not not remove the entire repository though, just the plugins that report an error.