Craftbukkit eclipse

hey guys,
i want try to fix bugs in bukkit to help the bukkit team. My problem is that i use maven the first time. I installed the plugin how it is written in the wiki here and check out the bukkit and craftbukkit project. with the bukkit project it works fine. By importing the craftbukkitproject it looks fine, but i get an error with the pom.xml. (Description Resource Path Location Type
Cannot read lifecycle mapping metadata for artifact org.apache.maven.plugins:maven-resources-plugin:maven-plugin:2.4.3:runtime Cause: error in opening zip file pom.xml /craftbukkit line 1 Maven Project Build Lifecycle Mapping Problem
)
i have just checkout the project and import it as a amyven project into my workspace (maybe i have to look at any depencies? Or i have the wrong repository chosen?)