компиляция знатока СОЗДАЕТ ОТКАЗ

добрый день

Я устанавливаю dspace 6.3 на ubuntu lts 18.04, но когда я компилирую знатока, упаковывают, говорит ОТКАЗ BUILD. что может быть проблемой, помогите!!

JDK актуален, и знаток актуален

заранее спасибо

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.108 s
[INFO] Finished at: 2019-11-18T02:26:19-05:00
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (/home/becsadspace). Please verify you invoked Maven from the correct directory. -> [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/MissingProjectException