Error on converting javascript to coffee

[BrahimDahmani]

When I paste a JavaScript in a ".coffee" file I get a blank error message, and it doesn't convert my code

ScreenShot:

Console Error:

Error code: 1
error: 
Traceback (most recent call last):
  File "/opt/sublime_text/sublime_plugin.py", line 550, in run_
    return self.run(edit, **args)
  File "RailsMagicClipboard in /home/ibrahim/.config/sublime-text-3/Installed Packages/Rails Magic Clipboard.sublime-package", line 119, in run
  File "/opt/sublime_text/sublime.py", line 115, in set_clipboard
    return sublime_api.set_clipboard(text)
TypeError: String required

[nickdowse]

Hey @brahimda, that's not good! Can you let me know the system details you're running it on (looks like Ubuntu to me, but including version number etc)? Also, does it happen every time? What happens if you try and paste in Sass to a .sass file or Haml to a .haml file?

[BrahimDahmani]

Hey @nickdowse, i'm runnig it on ubutnu 15.04 and ST 3 (build 3083) , actually i have this bug only when i paste javascript. Sass and Haml work perfectly