I have the same problem on a mac too. Unfortunately this solution will only work on windows. Do you have any idea how to fix this on mac. I have tried and there is a equivalent to the command prompter and I used the command but it did not work. I don't know if its a problem with my computer or mac. If you could please tell me if there is any other way. I've tried the second way and I couldn't figure out how to get to the environment variables.