When vue customizes the header to add a button

The

code looks like this, prompting TypeError: Cannot add property isRootInsert, object is not extensible
how to solve

Aug.27,2021

the error should not be here, but somewhere else


render:

renderHeader(h,params) {
  return (
    h('span',[
      h('el-checkbox',{
        props: {
          
        }
      }),
      h('span',params.column.label)
    ])
  )
}

params is an object, including column, $index and other attributes. Take a look at debug or console.log .

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2b7cc-2bab5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2b7cc-2bab5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?