Material ui export 'useInsertionEffect' (imported as 'useInsertionEffect$1') was not found in 'react' using Appbar component

Question

1: https://i.sstatic.net/Y2Zdo.png**strong text**

here i am trying to use Appbar component of material ui but i get this error

Answer 1

This was a bug that was caused by useInsertionEffect being referenced directly in the specifiers list of the import statement (React.useInsertionEffect instead of React['useInsertion' + 'Effect']).

It is fixed as of @emotion/[email protected] - upgrade to that version, and the error should disappear.

Answer 2

npm install @mui/[email protected] @emotion/[email protected] @emotion/[email protected] solves everything...