Just as a side note, the error occurred even when I started the game for the first time
Yes, that is quite reasonable if you replaced the packaged DLLs in ./StepMania 5/Program/ with some you found on the internet.
I remember installing the x86 redistributable (2008) and the x64 one as well. Would that be the cause of the problem?
I don't know. As an OS X + Linux user, myself, I'm rather out of touch with everything Windows-related. Sorry.
Last edited: 15 November 2014 6:43pm