title: java.lang.NoClassDefFoundError
body: <p>i am getting <code>java.lang.NoClassDefFoundError</code> error for Constant_Country class, that is exist inside <code>com.mi.uVite.model</code> package.</p>
  
  <p>Class is exist still it says <code>NoClassDefFoundError</code>. How can i overcome this issue?</p>
  
  <pre><code>java.lang.NoClassDefFoundError: com.mi.uVite.model.Constant_Country
          at com.mi.uVite.db.MIDatabaseHandler.createCountryTable(MIDatabaseHandler.java:911)
          at com.mi.uVite.db.MIDatabaseHandler.onCreate(MIDatabaseHandler.java:632)
          at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:252)
          at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:188)
          at com.mi.uVite.db.MIDatabaseHandler.rowCount(MIDatabaseHandler.java:570)
          at com.mi.uvite.BackGroundIntentService$1.onResponse(BackGroundIntentService.java:110)
          at com.mi.uvite.BackGroundIntentService$1.onResponse(BackGroundIntentService.java:67)
          at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60)
          at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:1)
          at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
          at android.os.Handler.handleCallback(Handler.java:725)
          at android.os.Handler.dispatchMessage(Handler.java:92)
          at android.os.Looper.loop(Looper.java:137)
  </code></pre>
  
  <p>And </p>
  
  <pre><code>public class Constant_Country
  {
  public static String country_id = "country_id";
  public static String country_short_code = "country_short_code";
  public static String country_name = "country_name";
  public static String country_code = "country_code";
  }
  </code></pre>