xcode - "NSDate not an Objective-C object" error shows when run the application in IOS 7 in real device -

nsdate object working iphone, ipad when ran application in real devices. when run application in ipad real device gives <not objective-c object> error. tried sort out it. couldn't.

- (nsstring*)getdatefromjsontostringsaveformat:(nsstring *)datestring {     nsdate *_date = [nsdate alloc] init];     nsdate *_date = [self getdatefromjson:datestring];     nsdateformatter *dateformatter = [[nsdateformatter alloc] init];     [dateformatter setdateformat:@"yyyy-mm-dd"];     return [dateformatter stringfromdate:_date]; }   - (nsdate*)  getdatefromjson:(nsstring *)datestring {     // expect date in format "/date(1268123281843)/"     int startpos = [datestring rangeofstring:@"("].location+1;     int endpos = [datestring rangeofstring:@")"].location;     nsrange range = nsmakerange(startpos,endpos-startpos);     unsigned long long milliseconds = [[datestring substringwithrange:range] longlongvalue];      nstimeinterval interval = milliseconds/1000;     return [nsdate datewithtimeintervalsince1970:interval];  } 

because of issue initialize nsdate object , saw date value. (nsdate *_date = [nsdate alloc] init];) in here gives same error? why that? faced error ??

first off can remove line:

nsdate *_date = [nsdate alloc] init]; 

since next line redeclares it, in line should remove missing [.

- (nsstring*)getdatefromjsontostringsaveformat:(nsstring *)datestring {     // not needed since line after declares variable.     //nsdate *_date = [nsdate alloc] init];     nsdate *_date = [self getdatefromjson:datestring];     nsdateformatter *dateformatter = [[nsdateformatter alloc] init];     [dateformatter setdateformat:@"yyyy-mm-dd"];     return [dateformatter stringfromdate:_date]; }