为什么我simulatedata-generator目录下执行mvn clean package的时候就报错了，新手，求指教

[mifeier]

D:\Big data\Data-Processer-master\Data-Processer-master\src\test\java\com\cloudw ise\toushibao\simulatedata_generator>mvn clean package [INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.094 s [INFO] Finished at: 2017-07-28T09:25:04+08:00 [INFO] Final Memory: 5M/121M [INFO] ------------------------------------------------------------------------ [ERROR] The goal you specified requires a project to execute but there is no POM in this directory (D:\Big data\Data-Processer-master\Data-Processer-master\src
test\java\com\cloudwise\toushibao\simulatedata_generator). Please verify you inv oked Maven from the correct directory. -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit ch. [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 rea d the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MissingProject Exception

D:\Big data\Data-Processer-master\Data-Processer-master\src\test\java\com\cloudw ise\toushibao\simulatedata_generator>