搭建新的nexus上传jar包

Question

No plugin found for prefix 'deploy' in the current project and in the plugin groups [org.sonarsource.scanner.maven, org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/Users/wang/Documents/branch/test/m2), nexus(http://192.168.170.12:8081/ne... -> [Help 1]
org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException: No plugin found for prefix 'deploy' in the current project and in the plugin groups [org.sonarsource.scanner.maven, org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/Users/wang/Documents/branch/test/m2), nexus (http://192.168.170.12:8081/ne...

在上传的过程当中，会在/Users/wang/Documents/branch/test/m2路径下去生成/Users/wang/Documents/branch/wxq/m2/org/apache/maven/plugins/maven-deploy-plugin/2.7 这又是为什么？而且2.7里面是lastUpdated文件，确实私服上面中央仓库当中没有2.7版本的plugin，可是我是在哪里指定了呢？