Issue while migrating project from 3.5 to 4.0

Hi there :wink:

I’m openning my 3.5 project with 4.0 beta, and i get this error after the project is imported :
“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 can I do then ?
Thank you in advance :wink:

It was caused by an empty js file… WEIRD xD