1，Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-help-plugin:2.2:effective-pom (execution: generate-effective-dependencies-pom, phase: generate-resources)
在错误上面右键->fix ,选择忽略它即可。详细见：http://www.eclipse.org/m2e/documentation/m2e-execution-not-covered.html