Application类的NoClassDefFound(NoClassDefFound from Application class)

 我已经被攻击了几个小时了，我正在初始化我的Controller.java类中的一些代码，我从我的应用程序类调用它，它在所有设备上提前工作但是从昨天开始我在lolipop以下的设备上获得NoClassDefNotFound异常..i没有更改此文件中可能触发它的任何内容 
 
 my ApplicationClass code:

 .. onCreate(..){
      ..
      Controller.init(this);
      ..
    }
 
 它是正确导入没有错误，它具有以下代码： 
 
  public class Controller {

      ..
      public static final void init(Context context) {
             mRequestQueue = Volley.newRequestQueue(context);
      }
      ..
  }
 
 包名称是正确的，我已经清理，重建，无效缓存和重新启动，重新启动工作室，重新计算机..我已经尝试了一切似乎没有工作。 
 
 我现在被打了几个小时，没有什么工作.. 
 
 代码在棒棒糖（Android 5.0）上工作正常，但在棒棒糖（Android 5.0）下崩溃 
 
 请帮帮我 

I have been struck on at a point for hours now, i was initializing some code in my Controller.java class that i called from my application class, it was working earlier on all devices but since yesterday i am getting NoClassDefNotFound exception on devices below lolipop..i have not changed anything in this file that may have triggered it
 
 my ApplicationClass code:

 .. onCreate(..){
      ..
      Controller.init(this);
      ..
    }
 
it is imported correctly has no error and it has the following code:
 
  public class Controller {

      ..
      public static final void init(Context context) {
             mRequestQueue = Volley.newRequestQueue(context);
      }
      ..
  }
 
Package name is correct , i have cleaned,rebuild,invalidated cache and restarted,restarted studios,restated computer.. i have tried everything nothing seems to work.
 
i am struck for hours now, nothing is working..
 
code works fine on lollipop (Android 5.0) but crashes below lollipop (Android 5.0) 
 
please help me out

原文：https://stackoverflow.com/questions/31686539