ruby on rails - ExecJS error when attempting to push to heroku? -

I get this error when trying to lock it:

  Rack aborted ! ExecJS :: ProgramError: Unexpected character '#' (Line: 11438, Colonel: 0, Position: 322768)  

What it means, how can I fix it, and how do I Can I find the line / call # to find the error?

Did you exclude the ".coffee" extension from a JS file (for example, " Users.js.coffee ")? If so, pre-compiling will not work for its comment in the original coffee file, and # can not be identified in JS.