Facebook android sdk internal server error -

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i want integrate facebook signin in android app. using facebook-sdk-4.4.0 getting blank screen. tried debug app using fiddler , noticed webview not able created because request facebook getting 500 internal server error response.

please figure out mistake making.

fiddler response

getting left image in activity

try code. it's work successfully.

callbackmanager = callbackmanager.factory.create();    loginbutton = (loginbutton) findviewbyid(r.id.login_button);    list < string > permissionneeds = arrays.aslist("user_photos", "email",  	"user_birthday", "public_profile", "accesstoken");  loginbutton.registercallback(callbackmanager,  new facebookcallback < loginresult > () {@override  	public void onsuccess(loginresult loginresult) {    		system.out.println("onsuccess");    		string accesstoken = loginresult.getaccesstoken()  			.gettoken();  		log.i("accesstoken", accesstoken);    		graphrequest request = graphrequest.newmerequest(  		loginresult.getaccesstoken(),  		new graphrequest.graphjsonobjectcallback() {@override  			public void oncompleted(jsonobject object,  			graphresponse response) {    				log.i("loginactivity",  				response.tostring());  				try {  					string id = object.getstring("id");  					try {  						url profile_pic = new url(  							"http://graph.facebook.com/" + id + "/picture?type=large");  						log.i("profile_pic",  						profile_pic + "");    					} catch (malformedurlexception e) {  						e.printstacktrace();  					}  					string name = object.getstring("name");  					string email = object.getstring("email");  					string gender = object.getstring("gender");  					string birthday = object.getstring("birthday");  				} catch (jsonexception e) {  					e.printstacktrace();  				}  			}  		});  		bundle parameters = new bundle();  		parameters.putstring("fields",  			"id,name,email,gender, birthday");  		request.setparameters(parameters);  		request.executeasync();  	}    	@override  	public void oncancel() {  		system.out.println("oncancel");  	}    	@override  	public void onerror(facebookexception exception) {  		system.out.println("onerror");  		log.v("loginactivity", exception.getcause().tostring());  	}  });

@override  protected void onactivityresult(int requestcode, int responsecode,  intent data) {  	super.onactivityresult(requestcode, responsecode, data);  	callbackmanager.onactivityresult(requestcode, responsecode, data);  }

for step step code check answer here. facebook login sdk4


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