Android : tesseract- target invocation exception- Google glass

Here is my code

String DATA_PATH = Environment.getExternalStorageDirectory().toString() + "/VIVA/";
    TessBaseAPI baseApi = new TessBaseAPI();
    baseApi.setDebug(true);
    //baseApi.init(DATA_PATH, lang);
    baseApi.init(DATA_PATH, "eng");
    baseApi.setImage(bmp);
    String recognizedText = baseApi.getUTF8Text();
    baseApi.end();
    Log.i("OCRED TEXT 2: " + recognizedText, "hello");

When I debug it, debugger stops after this line " TessBaseAPI baseApi = new TessBaseAPI();" There are no errors logged in log cat, But it opens target invocation exception class.

I have my training data in tessdata folder in assets,I have copied that data into Google glass SD card in onCreate() method.

What is it that I am missing?