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It will work, but you will need to modify some lines of code. When I release the module (by the 15th Sept.) I will release multiple versions, including 2.2.X. & 2.0.x...
The current version will throw an error under 2.2.x, but if you need to, you can do a search for mxdir and follow John's instructions to get the current version working with 2.2.x.