Hey I just opened studio today and I have encounted a horrible error that is really "bug"ing me. >:( I have tried reinstalling roblox through the control panel and everything such as removing all of my plugins, starting an empty baseplate and I STILL get this error and its really annoying me as it takes up lots of space in the output, whenever I try to click the game settings button on studio, it just does nothing..
Guys don't worry I think this a general Roblox Studio update issue. I have tested this on a freshly installed Mac and a different Roblox account on a different Network with no relation to the original computer and account I first encountered and got the exact same error.
Case solved.
Go to C:\Users\%username%\AppData\Local\Roblox\Plugins
and delete all files from it
This is probably due to a built in ROBLOX plugin, or from a Roblox Studio update. It shouldn't effect your game at all.