Firebase - Invalid JSON data or key values. Key values can’t contain $ # [ ] / or

Question

I\'m trying to import my JSON file into my Firebase but it keeps giving me this error. I don\'t know why this JSON file isn\'t allowed to be imported into since JSONLint say

Answer 1

I just found one more reason when Firebase throws this error:

This was the data firebase refused to upload:

 {
            "S. No.": 2,
            "University Name": "Acharya Nagarjuna University, Guntur (Id: U-0003)",
            "College Name": "Abhinav Institute of Management & Technology (Id: C-39450)",
            "College Type": "Affiliated College",
            "State Name": "Andhra Pradesh",
            "District Name": "Prakasam"
          } 

I thought of changing the key name of "S. No." and it worked.

{
            "S": 2,
            "University Name": "Acharya Nagarjuna University, Guntur (Id: U-0003)",
            "College Name": "Abhinav Institute of Management & Technology (Id: C-39450)",
            "College Type": "Affiliated College",
            "State Name": "Andhra Pradesh",
            "District Name": "Prakasam"
          } 

The Firebase was accepting the later format (I believe the problem was with .(dot) followed by space.) I hope this helps!!!