Ruby interpreter (CUI) 1.9.2p180 [i386-mingw32] has stopped working (I am not using MySQL)

Question

My ruby interpreter is crashing on almost every page request with the following error: Ruby interpreter (CUI) 1.9.2p180 [i386-mingw32] has stopped working

I am not using

Answer 1

Workaround:

Add (or change)

config.log_level = :warn

in config/environments/development.rb

(not my solution - found it in another thread)