Loading JSON as a Text Asset using Resources.Load

Question

Hey folks,

So I've got a bunch of .json files in my Resources folder, they are contained within several sub folders. And I want to Load them, before passing them through StreamReader and returning the final text.

However, when I try to Load the file I'm encountering a Null Ref of - "NullReferenceException: Object reference not set to an instance of an object"

Now I know this suggests the file isn't there but it is and I've got some Debug showing that the path is correct. Below is my code:

         public static string LoadResourceTextfile(string path)
         {
             string text;
             string filePath;
 
             filePath = @"SetupData/" + path;
            // filePath = filePath.Replace(".json", "");
 
             Debug.Log("filePath Is: " + filePath);
 
             var targetFile = Resources.Load<TextAsset>(filePath);
 
 
             using (var streamReader = new StreamReader(targetFile.text, Encoding.UTF8))
             {
                 text = streamReader.ReadToEnd();
             }
 
             return text;
         }

The "filePath" mentioned above which is passed in actually has the .json suffix, which is why I have a commented out replace. But that didn't fix the issue in any case.

Suggestions would be very welcome :).

Answer 1

Best Answer

Answer by William_Goodspeed · Nov 04, 2015 at 10:30 AM

In the end I found that simple removing the StreamReader was the easiest way to solve my issues.

         public static string LoadResourceTextfile(string path)
         {
 
             string filePath = "SetupData/" + path.Replace(".json", "");
 
             TextAsset targetFile = Resources.Load<TextAsset>(filePath);
 
             return targetFile.text;
         }

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Piyush_Pandey · Mar 22, 2018 at 11:41 PM 0

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You saved my life with this answer dude. Godspeed!

Tsuxi · Jun 19, 2019 at 01:15 AM 0

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Thanks! That's work for write and read json files :) you saved me too

AndyMartin458 · Oct 04, 2019 at 10:01 PM 2

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Yeah, I had to remove the .json as well. None of the paths have a suffix in the documentation, so I guess that is a clue. https://docs.unity3d.com/ScriptReference/Resources.Load.html

atnicoconut · Aug 02, 2022 at 03:13 PM 0

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Thanks! For me it worked without removing the .json(Unity 2020.3).

 string filePath = "Recipes/";
 
         TextAsset[] jsons = Resources.LoadAll<TextAsset>(filePath);
 
         foreach(TextAsset json in jsons)
         {
             MyClass classFromJson = JsonUtility.FromJson<MyClass>(json.text);
 
             myStuffList.Add(classFromJson);
         }

Dunno if that helps anyone :)

alemfi538 · Nov 28, 2022 at 12:33 AM 0

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Weird, why is it specifically json that requires removing the file extension? As far as I know, loading other text files is fine with the extension? It looks like this was a separate problem from your original query.

Thanks from 2022 btw.

Using Unity 2021.1.3.14f1.

Loading JSON as a Text Asset using Resources.Load

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