This is wat i tried and it got an error Property 'jsonData' not found on object of type 'MapViewController *'. NSError *writeError = nil; NSData *jsonData = [NSJSONSerialization dataWithJSONObject:path options:NSJSONWritingPrettyPrinted error:&writeError]; NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding]; NSLog(@"JSON Output: %@", jsonString); if (self.jsonData) { // symbolize the returned route graphic self.jsonData.routeGraphic.symbol = [self routeSymbol]; //2 // add the route graphic to the graphic's layer [self._graphicsLayer addGraphic:self.jsonData.routeGraphic];//3 // tell the graphics layer to redraw [self._graphicsLayer dataChanged]; }
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