Pulling the latest version from github should fix your problem. The source_data directory simply needs to exist. You could just create it if it's not there, but the latest version of the code should create it automatically.
Having said that, it wouldn't surprise me if you encountered other issues. The code hasn't been widely distributed so it's like to have undeclared dependencies and non-portable assumptions in the code. By all means let me know of these so I can fix them. The github issue tracker is probably the best place to do that.