JSON Error : ArgumentException: JSON must represent an object type.

Question

I am using the following script:

 [System.Serializable]
 public class Choice
 {
     public string choice;
     public int votes;
 }
 
 [System.Serializable]
 public class RootObject
 {
     public string question;
     public string published_at;
     public List<Choice> choices;
 }

For the following JSON data:

[

{ "question": "Favourite programming language?", "published_at": "2015-08-05T08:40:51.620Z", "choices": [ { "choice": "Swift", "votes": 2048 }, { "choice": "Python", "votes": 1024 }, { "choice": "Objective-C", "votes": 512 }, { "choice": "Ruby", "votes": 256 } ] } ] And I am getting this Error message in console : ArgumentException: JSON must represent an object type. Please tell me what I am doing wrong.

Answer 1

Best Answer

Answer by JDelekto · Apr 03 at 07:59 AM

At first glance, it looks like your JSON defines an array of RootObject objects, but you are trying to deserialize a single RootObject. If you are always getting an object with this JSON and only expect one object, you have two choices: a) remove the '[' and ']' array designator from the JSON string and deserialize as a RootObject or deserialize the JSON as a RootObject array (i.e. RootObject[]) and always take the first element of the array (if its length is not zero).

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Kaustav_Brainium · Apr 03 at 09:14 AM 0

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Bunny83 · Apr 03 at 10:09 AM 0

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JDelekto Bunny83 · Apr 03 at 10:43 AM 0

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JSON Error : ArgumentException: JSON must represent an object type.

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