No plugin found for prefix 'tomcat7'
问题描述：
[ERROR] No plugin found for prefix 'tomcat7' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (D:\apache\maven_repository), nexus-dl (http://10.12.1.21:8081/content/groups/public/)] -> [Help 1]
是啥问题？就一个项目有问题