I can't submit pset1 problems. It showing "Invalid problem. Did you mean to submit something else?Submission cancelled". please help

1 Answer 1


Make sure you are on the latest version of the IDE (98 as of this writing). It is displayed in the top right next to the cloud9 icon, or run version50 from the command line. Use update50 to get the latest. That fixed this problem as reported on reddit.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .