Add possible solution for field validation error

rest_framework/serializers.py

@@ -227,6 +227,7 @@ class BaseSerializer(Field):
         Run `validate_<fieldname>()` and `validate()` methods on the serializer
         """
         for field_name, field in self.fields.items():
+            if field_name not in self._errors:
                 try:
                     validate_method = getattr(self, 'validate_%s' % field_name, None)
                     if validate_method: