Have you ever seen this warning message?

Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning?

Everything seems to be doing fine in our project until all of a sudden this error shows up. What's going on?

Turns out this message is wrong. If we click on Problems in the Terminal section of VSCode we'll see issues needing attention. After fixing them, this message goes away!