I am following the turorial http://confluence.jetbrains.com/display/IntelliJIDEA/Lexer+and+Parser+Definition. I seem to get stuck on step 6 every time I try. How do I get the PSI viewer to come up when I run the project? Each time I start the project, I can open a project with my filetype and it gets the custom icon, but I can seem to use the PSI viewer, and the instance of the ide that is run for the project does not include the Grammar-Kit plugin. Am I doing something wrong?