在eclipse中的maven打包命令：mvn clean package
错误：Unknown lifecycle phase "mvn". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]
原因：主要是在eclipse中有自己maven的插件，当打包是会自动加上mvn的命令，即当命令是“mvn clean package”时，命令是“ mvn mvn clean package”。
解决方案：将命令改为“clean package”即可。
注意：
这里的maven的settings.xml文件以eclipse引入的为准，不受其名字限制。