ios - Getting Error Domain=kCFErrorDomainCFNetwork Code=-1000 or NSCocoaErrorDomain Code=3840 -

first of want tell duplicate question, have tried ways possible - link have searched--> bad url when requesting nsurl

ios develoment: why nsurlconnection failing "bad url" error users? bad url when requesting nsurl

i sending request server-> always getting bad url error i.e

request failed error: error domain=nsurlerrordomain code=-1000 "bad url" userinfo=0xcbf0680 {nsunderlyingerror=0xc9ad8e0 "bad url", nslocalizeddescription=bad url}, {     nslocalizeddescription = "bad url";     nsunderlyingerror = "error domain=kcferrordomaincfnetwork code=-1000 \"bad url\" userinfo=0xc96dc30 {nslocalizeddescription=bad url}"; } 

code->

 nsstring *imgurl = [nsstring stringwithformat:@"https://graph.facebook.com/%@/picture", fbid];                     nsstring *urlstring = [nsstring stringwithformat:@"%@url=register_user.json&username=%@&email=%@&dob=%@&by_socialnetwork=\"1\"&gender=%@&nicename=%@&socialimageurl=%@",base_url,[info_dict objectforkey:@"username"],[info_dict objectforkey:@"email"],[info_dict objectforkey:@"birthday"],[info_dict objectforkey:@"gender"],[info_dict objectforkey:@"name"],imgurl];                   nslog(@"url  %@",urlstring );                  [urlstring stringbyaddingpercentescapesusingencoding:nsutf8stringencoding];                 nsmutableurlrequest *request = [[nsmutableurlrequest alloc] initwithurl:[nsurl urlwithstring:urlstring] cachepolicy:nsurlrequestuseprotocolcachepolicy timeoutinterval:5.0];                     [request sethttpmethod:@"get"];                     [request addvalue:@"text/json; charset=utf-8" forhttpheaderfield:@"content-type"];                    //nsurlrequest *request=[[nsurlrequest alloc] initwithurl:[nsurl urlwithstring:urlstring]];                   nslog(@"url  %@",request );                  afjsonrequestoperation *operation=[afjsonrequestoperation jsonrequestoperationwithrequest:request success:^(nsurlrequest *request, nshttpurlresponse *response, id json) {                      nslog(@"dgj,gfj,gf,j%@",json);                      [self requestsucceedwithitems:json forrequesttype:@"fb"];                   }failure:^(nsurlrequest *request, nshttpurlresponse *response, nserror *error, id json) {                       nslog(@"request failed error: %@, %@", error, error.userinfo);                      [appdelegate showalert:@"error" fortext:@"network activity failed,try later."];                   }];                   [operation start]; 

terminal nslog response:-

 url  <nsurlrequest: 0xcd8d060> { url: http://192.168.1.100/~ha/gokk/index.php?url=register_user.json&username=abx&email=abxx@gmail.com&dob=12/19/1978&by_socialnetwork=1&gender=male&nicename=sam&socialimageurl=https://graph.facebook.com/1008823838/picture } 

response:- ****sometime getting bad url error or ****

2014-02-06 13:37:01.426 flokk[1561:a0b] request failed error: error domain=nscocoaerrordomain code=3840 "the operation couldn’t completed. (cocoa error 3840.)" (json text did not start array or object , option allow fragments not set.) userinfo=0xc953c20 {nsdebugdescription=json text did not start array or object , option allow fragments not set.}, {     nsdebugdescription = "json text did not start array or object , option allow fragments not set."; }