java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference
	at android.widget.Toast.<init>(Toast.java:108)
	at android.widget.Toast.makeText(Toast.java:283)
	at d4.a1$q.f1(SourceFile)
	at d4.a1$q.onPostExecute(SourceFile)
	at android.os.AsyncTask.finish(AsyncTask.java:667)
	at android.os.AsyncTask.-wrap1(AsyncTask.java)
	at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:684)
	at android.os.Handler.dispatchMessage(Handler.java:102)
	at android.os.Looper.loop(Looper.java:154)
	at android.app.ActivityThread.main(ActivityThread.java:6242)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:793)