I have an Addon I'd like to use, but when I would install the .py file, theres a message on the far right saying I need to "upgrade to 2.8x...". The addon seems to be added into my Addons list, but when I search for it in Blender, it cannot be found. Is there anything I can do to use this addon?
closed as too broad by batFINGER, Duarte Farrajota Ramos♦ Aug 7 at 9:35
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Unless you're comfortable reading and writing Python, you won't be able to do anything but wait for the addon creator to do it.
2.8 changed the API quite a bit, but this addon may or may not use the parts that changed. So updating the addon might be as easy as changing a few lines, or as difficult as a complete rewrite of several parts of the script.
Your best bet is to use it in 2.79 for now and link/append it in.