I am trying to run my debugger in RubyMine. Previously, it was working fine. Today I tried using it and it gave me an error that said "Rackup script is not found in SDK." I tried editing the configuration and taking a peek at the "project SDK" option from the drop-down. There are no longer any options under that menu. I went to preferences then "Ruby SDK and Gems" and "nothing to show" is all that appears when I click on it. Previously it listed all my RVM versions. Anyone know how to fix this?