jbuilder. Ошибка при компиляции.

люди!!! ПОМОГИТЕ!!! что делать??? при компиляции проекта выводится ошибка(класс ERGModuleClass есть)
java.lang.ClassNotFoundException: com.ned.neuralmodules.ergram.ERGModuleClass
at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at com.ned.neuralmodules.NeuralModulesManager.load(NeuralModulesManager.java:94)
at com.ned.neuralmodules.NeuralModulesManager.getInstance(NeuralModulesManager.java:42)
at com.ned.diagnostics.DiagnosticsCore.<init>(DiagnosticsCore.java:24)
at com.ned.core.CoreModulesController.initModules(CoreModulesController.java:79)
at com.ned.core.CoreModulesController.ensureModulesInitialized(CoreModulesController.java:73)
at com.ned.core.CoreModulesController.getModules(CoreModulesController.java:43)
at com.ned.application.MainFrame.jbInit(MainFrame.java:81)
at com.ned.application.MainFrame.<init>(MainFrame.java:43)
at com.ned.application.MainClass.<init>(MainClass.java:20)
at com.ned.application.MainClass.main(MainClass.java:50)