我利用eclipse导入 httpsclient包的源码项目。出现了错误
Plugin execution not covered by lifecycle configuration: com.googlecode.maven-download-plugin:download-maven-plugin:1.2.0:wget (execution: download-public-suffix-list, phase: generate-sources)
Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-checkstyle-plugin:2.9.1:checkstyle (execution: validate-examples, phase: validate)
Project configuration is not up-to-date with pom.xml. Select: Maven->Update Project... from the project context menu or use Quick Fix.
能不能解答下。什么办法解决?