Error in deleting specific field in a cloud firestore document

问题

I'm using this code from here

Firestore.instance.collection('path').document('name').updateData({'Desc': FieldValue.delete()}).whenComplete((){
  print('Field Deleted');
});

I'm using

 cloud_firestore: 0.13.2+1

However, this throws an error

[ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: type 'MethodChannelFieldValue' is not a subtype of type 'FieldValuePlatform'

Can anyone tell me how to delete a field right way

回答1:

You may refer to the official Firestore documentation for guidance on how to delete fields.

var cityRef = db.collection('cities').doc('BJ');

// Remove the 'capital' field from the document
var removeCapital = cityRef.update({
    capital: firebase.firestore.FieldValue.delete()
});

来源：https://stackoverflow.com/questions/60759410/error-in-deleting-specific-field-in-a-cloud-firestore-document