Getting avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders

Question

I am new to vuejs and I am trying to sync active data to parent but getting an error as

vue.js:523 [Vue warn]: Avoid mutatin

Answer 1

I hope this is the version problem. please show your VUEJS version, else get the version from below code.

    
    {{$data |  json}}