I have a serious problem with Vue 3. I have 2 projects, everything was working fine, but suddenly something broke and everything stopped working. I think I updated the Vue CLI, but I dont remember.

The problem is that both projects are on the serve script and are returning the same error, the error is "has no exported member":

TS2305: Module '"../../node_modules/vue/dist/vue"' has no exported member 'ref'.

and basically for every other vue function like reactive or something...

I have @vue/cli 4.5.15 , and both projects have in package json:

"vue": "^3.0.0-0" ,
"typescript": "~3.9.3",

Any ideas how to fix that?