VM332 WAService.js:2 Error: _vm.changeTabs is not a function

error¶

the tab reports an error:

VM332 WAService.js:2 Error: _vm.changeTabs is not a function reports an error, 

and after searching for a long time, no code error was found. After checking one by one, it was found that the words were correct:

Where to check:

1. Spelling of words,
2. Whether the method name has multiple @
3. Is there more than one methods
4. Whether the method is in methods,
5. Is there a subscript in data

my problem¶

The final inspection found that two methods were written, resulting in an error...