FBRequestConnection class method not found

Question

I am trying to run a Facebook multi-query as instructed by the tutorial on the Facebook developer's site for FacebookSDK for iOS, below is the code I have in my iOS app:

-(BOOL) FBGetFriendList
{
    if (FBSession.activeSession.isOpen)
    {
        // Multi-query to fetch the active user's friends
        // Initial query is stored in reference named "friends"
        // Second query picks up the "uid2" info from the first query
        // and gets the friend details.
        NSString *query = 
        @"{"
        @"'friends':'SELECT uid2 FROM friend WHERE uid1 = me()',"
        @"'friendinfo':'SELECT uid, name, pic_square FROM user WHERE is_app_user = 1 AND uid IN (SELECT uid2 FROM #friends)',"
        @"}";

        // Setup the query parameter
        NSDictionary *queryParam = [NSDictionary dictionaryWithObjectsAndKeys:query, @"q", nil];

        // Make the API request that uses FQL
        [FBRequestConnection startWithGraphPath:@"/fql"
                                 parameters:queryParam
                                 HTTPMethod:@"GET"
                          completionHandler:^(FBRequestConnection *_connection, id _result, NSError *_error) {
            // check for errors here
            if (_error)
            {
                NSLog(@"FacebookSDKPlugin > FBGetFriendList() > request error!");
            }
            else
            {
                @synchronized(friendList)
                {
                    if (friendList == nil)
                    {
                        friendList = [[NSMutableArray alloc] init];
                    }
                    else
                    {
                        [friendList removeAllObjects];
                    }
                    NSArray *facebookData = [(NSDictionary *)_result objectForKey:@"data"];
                    int count = facebookData.count;
                    for (int i = 0; i < count; ++i)
                    {
                        NSDictionary *tempObject = [facebookData objectAtIndex:i];
                        FacebookFriend *tempFriend = [[FacebookFriend alloc] initWithID:[tempObject.id copy] name:[tempObject.name copy]];
                        [friendList addObject:tempFriend];
                    }
                }
             }
        }];
        return YES;
    }
    return NO;
}

However, during compilation there is a warning:

Class method '+startWithGraphPath:parameters:HTTPMethod:completionHandler:' not found (return type defaults to 'id')

I ignored the error and compiled on my iPad2, which crashed with this error:

2012-09-03 11:53:13.377 +[FBRequestConnection startWithGraphPath:parameters:HTTPMethod:completionHandler:]: unrecognized selector sent to class 0xa05350
2012-09-03 11:53:13.379 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[FBRequestConnection startWithGraphPath:parameters:HTTPMethod:completionHandler:]: unrecognized selector sent to class 0xa05350'

I have included "FBRequest.h", and "Facebook.h", and I can see the method in "FBRequest.h". However I don't understand why the compiler cannot find the function. Does anybody have any idea how to solve this issue?

FBRequestConnection class method not found

Answers (1)

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