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Figured I'd throw this here rather than invading all the individual mods with similar posts. Only TeleBelts has a different error, while all the others have some issue with .png files. I looked & checked, and found that the way to solve this problem previously was to remove the version numbers from the file name. Though I can't really do that now with 0.10.8 since it expects them to be there. Any thoughts?

The new naming convention made this. You need to make sure your ZIPs (or folders) have the same name as said in info.json, and all references to the files inside the mod's folder __MOD__ has to match that. So:

You need to manually fix the paths for the mods inside every lua file (Notepad++ for the rescue on this)
Manually fix the ZIP (or folders) name inside the mods folder