traneous non-props attributes (ref_key) were passed to component but could not be automatically inhe

Error reported when using element-plus in vue3 

 Generally, it is caused by the incompatibility between the vue version and the element-plus version

You can choose to reinstall vue3, or reduce the element-ui version, it is recommended to upgrade the vue3 version

npm install vue@next

Then restart the project just fine. warning cleared,