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Attempt to invoke virtual method 'android.os.IBinder android.view.View.getWindowToken()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'android.os.IBinder android.view.View.getWindowToken()' on a null object reference	at android.widget.PopupWindow.showAtLocation(PopupWindow.java:897)	at logistica.enviaflores.com.logistica.utilities.MyAdapter$1.onClick(MyAdapter.java:81)	at android.view.View.performClick(View.java:4780)	at android.view.View$PerformClick.run(View.java:19866)	at android.os.Handler.handleCallback(Handler.java:739)	at android.os.Handler.dispatchMessage(Handler.java:95)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5254)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)