I keep having this bug. Can't change anything in my code

Please can you copy paste the whole message that is logged in the console (Ctrl + Shift + I) or click on the report button? It will help us investigate the issue.

What is the last thing you do before getting this error?
Can you share the project where the issue happens?

I got this message when I was trying to change an expression in one of my extensions. I could not change that expression because this message would appear. I can’t remember which expression it was. I have to try all of them. So I will repost here the whole message when it happens again.
What do you mean by “sharing the project”?

In case, you find a way to reproduce the issue that only works with your project, but maybe it won’t be necessary.