java - Error:(31, 39) error: cannot find symbol variable context -

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• what “cannot find symbol” compilation error mean? 6 answers

i integrating parse existing android application. said, following documentation, have managed create compile error of following:

error:(31, 39) error: cannot find symbol variable context 

the code creates error below.

import android.content.intent; import android.os.bundle; import android.provider.syncstatecontract; import android.support.v7.app.actionbaractivity; import android.util.log; import android.view.view; import android.widget.textview;  import com.facebook.request; import com.facebook.response; import com.facebook.session; import com.facebook.sessionstate; import com.facebook.uilifecyclehelper; import com.facebook.model.graphuser; import com.parse.parse; import com.parse.parsefacebookutils;  public class mainactivity extends actionbaractivity {     // create, automatically open (if applicable), save, , restore     // active session in way similar android ui lifecycles.     private uilifecyclehelper uihelper;     private view otherview;     private static final string tag = "mainactivity";      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         parse.initialize(this, "parse application id removed security reasons", "parse client id removed security reasons");         parsefacebookutils.initialize(context);         setcontentview(r.layout.activity_main);         // set view should visible after log-in invisible         otherview = (view) findviewbyid(r.id.other_views);         otherview.setvisibility(view.gone);         // maintain fb login session         uihelper = new uilifecyclehelper(this, callback);         uihelper.oncreate(savedinstancestate);     }      // called when session changes     private session.statuscallback callback = new session.statuscallback() {         @override         public void call(session session, sessionstate state,                          exception exception) {             onsessionstatechange(session, state, exception);         }     };      // when session changed, method called callback method     private void onsessionstatechange(session session, sessionstate state,                                       exception exception) {         final textview name = (textview) findviewbyid(r.id.name);         final textview gender = (textview) findviewbyid(r.id.gender);         final textview location = (textview) findviewbyid(r.id.location);         // when session opened (user logged-in)         if (state.isopened()) {             log.i(tag, "logged in...");              //opens new activity view user can edit profile.             startactivity(new intent(mainactivity.this, setupprofileactivity.class));              /*// make request /me api graph user             request.newmerequest(session, new request.graphusercallback() {                  // callback after graph api response user                 // object                 @override                 public void oncompleted(graphuser user, response response) {                     if (user != null) {                         // set view visibility true                         otherview.setvisibility(view.visible);                         // set user name                         name.settext("hello " + user.getname());                         // set gender                         gender.settext("your gender: "                                 + user.getproperty("gender").tostring());                         location.settext("your current location: "                                 + user.getlocation().getproperty("name")                                 .tostring());                     }                 }             }).executeasync();*/          } else if (state.isclosed()) {             log.i(tag, "logged out...");             otherview.setvisibility(view.gone);         }     }      @override     public void onactivityresult(int requestcode, int resultcode, intent data) {         super.onactivityresult(requestcode, resultcode, data);         parsefacebookutils.onactivityresult(requestcode, resultcode, data);         uihelper.onactivityresult(requestcode, resultcode, data);         log.i(tag, "onactivityresult...");     }      @override     public void onresume() {         super.onresume();         uihelper.onresume();     }      @override     public void onpause() {         super.onpause();         uihelper.onpause();     }      @override     public void ondestroy() {         super.ondestroy();         uihelper.ondestroy();     }      @override     public void onsaveinstancestate(bundle outstate) {         super.onsaveinstancestate(outstate);         uihelper.onsaveinstancestate(outstate);     } } 

according parse's documentation supposed call parsefacebookutils.initialize(context); in oncreate method, did. compiler cannot find symbol reference though have imported relevant classes.

searching through stackoverflow , google know related compiler not being able find context wondering if initializing in wrong place or need override oncreate function (which think did).

thanks in advance help.

if want pass context, use this (i.e. activity instance).

change

parsefacebookutils.initialize(context); 

to

parsefacebookutils.initialize(this);