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Question by kpagcha · Jan 17, 2016 at 08:51 PM · androidfileexception

Android app: IsolatedStorageException when reading from file

My app runs perfectly in PC, but when testing it in Android I am getting this error when launching it:

I/Unity (26449): IsolatedStorageException: Could not find a part of the path "/mnt/asec/es.uca.gii.dsh.traducinante-1/base.apk/Resources/items.json".

I don't know what this is about but it's totally messing with my app because it's not reading the data form items.json and I need that.

Here's where this is happening:

 string jsonString = File.ReadAllText(Application.dataPath + "/Resources/items.json");

Why does it work on PC but I get this error in Android? What am I missing? What should I do?

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avatar image BenjaFriend22 · Apr 06, 2017 at 03:13 PM 0
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I'm having the same issue, did you ever find the solution?

avatar image HDX13 · Aug 16, 2017 at 06:53 PM 0
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Same thing happened here. I thought it was the audio messing up my game. Turns out it was IsolatedStorageException.

Here's a log with full stack trace:

IsolatedStorageException: Could not find a part of the path "/mnt/asec/com.company.appname-2/base.apk/Resources/Values/Quiz.json".
System.IO.FileStream..ctor (System.String path, File$$anonymous$$ode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/FileStream.cs:290)
System.IO.FileStream..ctor (System.String path, File$$anonymous$$ode mode, FileAccess access, FileShare share)
System.IO.File.OpenRead (System.String path) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/File.cs:363)
System.IO.StreamReader..ctor (System.String path, System.Text.Encoding encoding, Boolean detectEncodingFromByteOrder$$anonymous$$arks, Int32 bufferSize) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/StreamReader.cs:167)
System.IO.StreamReader..ctor (System.String path, System.Text.Encoding encoding)
System.IO.File.ReadAllText (System.String path, System.Text.Encoding encoding) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/File.cs:587)
System.IO.File.ReadAllText (System.String path) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/File.cs:582)
$$anonymous$$yGame.$$anonymous$$ain.Awake () (at D:/ProjectDir/$$anonymous$$yGame/Assets/Scripts/Game/$$anonymous$$ain.cs:1xx)
 

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Answer by HDX13 · Aug 16, 2017 at 04:56 AM

As described in the forums about IsolatedStorageException, @amanpu mentions that we should use TextAsset class to load our text (JSON) file.

TextAsset jsonData = Resources.Load<TextAsset>("Values/JSONData");
// dataObj = JsonConvert.DeserializeObject<List<DataValues>>(jsonData.text);
// or use this
dataObj = JsonUtility.FromJson<List<DataValues>>(jsonData.text);

Note: The first one uses Newtonsoft.Json library. Unity uses the second one.

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