Compile shows 'cannot find symbol'

[djj0809]

I use this plugin for a java project to generate jpa meta model, but when compiling, it complains like this:

    :ad-core:compileJava
    /home/***/ad/core/query/spec/WordInfoPoSpecs.java:18: cannot find symbol
    symbol  : class WordInfoPo_
    location: package ***.ad.core.po
    import ***.ad.core.po.WordInfoPo_;

But it does compile success, and I guess these are just warnings....
Do you hava any idea how to get rid of it?

[futtetennista]

No. I've never seen such warning in my projects, it could be related to Hibernate but in that case I cannot help since I don't have any experience with it.