I meant ALL the steps, from the very beginning. It might be a good idea to start again with a completely fresh install of blender. My recommended steps: Install blender. Go to your blender addons directory, for me this isĀ  ~/.config/blender/2.80/scripts/addons but I use Linux and blender 2.80. I have no idea where it is on other OSes. Using git, clone the repository for blender 2.79: git clone -b blender2.79 https://github.com/taniwha/io_object_mu.git
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