mvn install:install-file -Dfile="D:maven epositorycom citfarm-api1.0.0-SNAPSHOTitfarm-api-1.0.0-SNAPSHOT.jar" -DgroupId="com.tc" -DartifactId="itfarm" -Dversion="1.0.0-SNAPSHOT" -Dpackaging=jar
maven中maven dependencies中依赖出现了项目，把依赖的项目关掉，项目消失，但是还是无法打包 ，出现的错误如图。说明:依赖的项目为project-dao 打包的项目为project-service 都在project-parent中有依赖。project-dao是可以打包成功的。project-service中依赖dao的jar包也可以过来。
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building project-service 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.507s
[INFO] Finished at: Thu May 22 09:45:55 CST 2014
[INFO] Final Memory: 4M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project project-service: Could not resolve dependencies for project com.newhero.project:project-service:jar:0.0.1-SNAPSHOT: Failed to collect dependencies for [com.newhero.project:project-dao:jar:0.0.1-SNAPSHOT (compile?)]: Failed to read artifact descriptor for com.newhero.project:project-dao:jar:0.0.1-SNAPSHOT: Could not find artifact com.newhero.project:project-parent:pom:0.0.1-SNAPSHOT -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
mvn install 可以解决问题
mvn -X clean install，-X表示强制从远程库更新dependency；再不行可能就是远程仓库没有架包了。
如果Nexus上没有架包，就需要用到上面的本地化安装架包命令