Internal compiler error

hello

i was importing a project to unity 4.0.x and i have found this error :

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
Parameter name: fullname’.

what should i do ?

thanks

It is a bug. You probably have an empty JS file in your project.