- (void)getFacebookProfile {
NSString *urlString = [NSString stringWithFormat:@\"https://graph.facebook.com/me?access_token=%@\", [_accessToken stringByAddingPercent
Check the instructions here:
http://allseeing-i.com/ASIHTTPRequest/Setup-instructions
It seems likely one of the two steps listed has been skipped or not done correctly. Is it possible that you've not added ASIHTTPRequest.m to your project? or it's not been included in the target you're building?