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Hi, does it go away if you refresh the page?
This should happen just once when the script is updated.
Okay, so you are talking about Developer > Run Syntax Check instead of actual script errors.
On a casual glance, over 95% are due to braceless 'if'. Not everyone believes that braces should be mandatory for 'if', 'for', 'while', etc.
There are some var redeclarations. They are harmless, but should be removed if one is pedantic.
There are also some warnings for accessing variables declared in an outer function. I'm surprised by this.
If you hover over the !, it explains the warning.
It is a good idea to lint JavaScript code, but we should not follow preset lint rules blindly. Always tune it to fit your coding style.
I am getting 189 Errors on Tampermonkey on Google Chrome
Any ideas why so many?