Avoid copy and paste from an editor that is rich text format. Try typing manually and see if you still get the issue. You can also paste to something like vi, notepad or texwrangler and then copy and paste from that. This is a malformed string most likely.
Additionally, please see at the top of the tutorial. There it should be a snippet about interpreter binding, click the Save button and hopefully all start to work normally. If not please post the exception dump.
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