Problem with loading TextAsset in Android

Unity Engine
1

Hello, I’m developing simple game with Unity 4.3.4.
my game app needs to load JSON text file in runtime.
so I used like followings

TextAsset asset = Resources.Load ( "stages" ) as TextAsset;
string datafileContent = asset.text; 
doSomethingWithTextFile ( dataFileContent );

I placed json text file
in
\Assets\Resources\stages.json

It just works well! … in Unity IDE only.
in Android, it fails to load test json file.

How can I this make possible?
please help.

Thank you for reading.

2

I think text assets need certain file extensions, so perhaps change stages.json to stages.json.text. (I know the docs say json is a supported file extension, I just wonder if for some reason the Android build fails to accept it.)