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Re-read that message. It says "/Playlists doesn't exist". It means that the directory where the playlists are to be stored doesn't exist.
Would someone be kind enough to write a short description of what this patch does and how it operates, and post it either in this thread or on the patch tracker? It doesn't have to be anything fancy, just a basic rundown that I can use to write an entry for the manual for this feature without having to read through 9 pages of posts.
dir: <path_to_your_directory>
dir: /MyPlaylists
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