I can not Load AssetBundle on iPad

I create a .unity3d file and put it in StreamingAssets folder as shown below:

And I Load it like this:

string path = Application.dataPath + "/Raw/PopView.unity3d";
WWW www = new WWW(path);
yield return www;
AssetBundle astBdl = www.assetBundle;
Object ast = astBdl.Load("ArmyView");
GameObject gb = GameObject.Instaniate(ast) as GameObject;

When I run it on iPad xcode throws errors, but when I run it on Unity3D Editor with the path "Application.dataPath + "/StreamingAssets/PopView.unity3d", it's OK.

What should I do if I want to load .unity3d file on ipad?
I wish someone could help me, Thank You!

I uploaded the error and the path printed by Xcode:

 

What errors do you get? Were the asset bundles built for iOS? Maybe the runtime cannot find the file? I usually think of StreamingAssets as a folder used for storing fullscreen movies on iOS. I'm not sure that all files in that folder get copied across to the iOS device. (I might be wrong, but that's why I asked for more details about the error.)

 

Yeah, I create .unity3d file on Mac. I don't have Mac beside me now so I can not tell the errors. But I agree with you that maybe the runtime cannot find the file, so could you tell me the correct way load .unity3d file on the ipad platform?(My poor English, forgive me)

 

http://docs.unity3d.com/Documentation/ScriptReference/Application-streamingAssetsPath.html for path

 

Thank you. I tried Application.streamingAssetsPath but it does not work. .txt file and .xml file can be accessed but .unity3d file can not.

 

did you get it working?
if not then try this and let me know

http://www.chrisdanielson.com/2011/05/03/unity3d-file-assetbundles-on-the-iphone/

 

hi . haveing Same issue i have data.bin file on root of asset folder
after build it for ios i cant find and load level from data.bin file.
i dont know data.bin file is copyed in build or not how to check ? is there any solution ?
can i put data.bin file in resource foder and use it on ios device to read or right ?