Compile errors

Platfom: Jboss 3.2 + PostgreSQL 7.4

I got lots of compile errors It's because there are no XXXXData.java 
files. What do I do wrong?
Below: -
compile-ejb:
    [javac] Compiling 298 source files to 
D:\Narzedzia\middlegen\samples\build\classes
    [javac] 
D:\Narzedzia\middlegen\samples\build\gen-src\MyProject\ejb\BranchFacadeEJB.java:135: 
cannot resolve symbol
    [javac] symbol  : class BranchData
    [javac] location: package interfaces
    [javac] 	   public MyProject.interfaces.BranchData 
findByPrimaryKey(MyProject.interfaces.BranchPK pk) throws 
javax.ejb.FinderException,  javax.naming.NamingException {
Thank for help in advance
Tom



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