"Empty name" error ???

Does anyone know what Internal compiler error. See the console log for more information. output was:BCE0011: An error occurred during the execution of the step ‘Boo.Lang.Compiler.Steps.EmitAssembly’: 'Empty name is not legal means?

I was making a js and i gotInternal compiler error. See the console log for more information. output was:BCE0011: An error occurred during the execution of the step ‘Boo.Lang.Compiler.Steps.EmitAssembly’: ‘Empty name is not legal
Parameter name: fullname’. I dont know what it means could someone tell me, thinks

delete any empty JS Script File .