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fluttersyntax-error

error in Flutter The named parameter 'onChanged' is required, but there's no corresponding argument. Try adding the required argument

What is the problem? How can I solve it? My codes:

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Solution

  • You should pass the onChanged argument in ApprovalQueuePage as it is required.Pass it like this:

    //When calling approval queue leave everything as it is
//just replace ApprovalQueuePage() with
ApprovalQueuePage(onChanged: (String value){
    //You can do anything with the value
})