Breeze SaveChanges Method Json Exception Return Possible ?

Question

Hello anyone Please Help Me....

 

 I have Bellow Code Breeze Used and Save Data, Data Save Successfully but i have retrun some situation json error retrun frontend side

[HttpPost]
        public SaveResult SaveChanges(JObject saveBundle)
        {
            return _repository.SaveChanges(saveBundle);
        }

 

I have Required Vaild Content That Time Save Record but Not Valid Data That time Return Json Exception ABove Method That is Possible Or Not 

 

 like Possible So, Please Help me