Android activity has java.lang.IllegalArgumentException: View=com.android.internal.policy.impl.PhoneWindow$DecorView Exception and get crashed -

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it got below error sometime when android activity starting.

java.lang.illegalargumentexception: view=com.android.internal.policy.impl.phonewindow$decorview{16055902 v.e..... r......d 0,0-639,154} not attached window manager

enter image description here

this .java file step 1 : invitefriendsactivity.java public class invitefriendsactivity extends appcompatactivity implements view.onclicklistener {

    @bind(r.id.btn_invite)     monoserratregularbutton btninvite;     @bind(r.id.ll_main)     linearlayout llmain;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);              setcontentview(r.layout.activity_invite_friends);         butterknife.bind(this);         btninvite.setonclicklistener(this);     } }

step2 :login.java

private void loadurl(boolean istrue) {      mapp = new instagramapp(this, applicationdata.client_id,             applicationdata.client_secret, applicationdata.callback_url, istrue);      mapp.setlistener(new instagramapp.oauthauthenticationlistener() {          @override         public void onsuccess() {             // tvsummary.settext("connected " + mapp.getusername());             // userinfohashmap = mapp.             mapp.fetchusername(handler);             intent intent = new intent(loginactivity.this,invitefriendsactivity.class);             startactivity(intent);             finish();         }          @override         public void onfail(string error) {             toast.maketext(loginactivity.this, error, toast.length_short)                     .show();         }     }); }


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