Unhandled error during execution of scheduler flush. This is likely a Vue internals bug. Please open an issue at https://new-issue.vuejs.org/?repo=vuejs/vue -next

Error reason

An error is reported when vue2 turns to vue3

Error reporting reason

Nested functions are used in the way of global variables. When functions are executed, errors are reported and vue3 direct errors are reported

Check the error position

On the page with problems, correct the errors by commenting the code and quickly find the error location

Solution

The code in the function is written correctly

No error reported!