4 What to do when all else fails

1. I'm getting an error message that I don't understand. What can I do?
   Try compiling with the ‘-E’ (‘--verbose-error-messages’) option. This option causes the compiler to give even more verbose descriptions than usual.

2. I followed the instructions in the user's guide, but it still didn't work. What do I do next?
   Send email to bugs@mercurylang.org, and we'll try to solve your problem.