FBRequest requestForMe does not respond - ios

Question

I am following the sample codes on Facebook developer's site and I cannot fetch my name for example. I am using this code:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
if (!appDelegate.session.isOpen) {
NSLog(#"Session is not open");
// create a fresh session object
appDelegate.session = [[FBSession alloc] init];
// if we don't have a cached token, a call to open here would cause UX for login to
// occur; we don't want that to happen unless the user clicks the login button, and so
// we check here to make sure we have a token before calling open
if (appDelegate.session.state == FBSessionStateCreatedTokenLoaded) {
// even though we had a cached token, we need to login to make the session usable
[appDelegate.session openWithCompletionHandler:^(FBSession *session,
FBSessionState status,
NSError *error) {
// we recurse here, in order to update buttons and labels
}];
}
} else {
NSLog(#"Session is open");
[[FBRequest requestForMe] startWithCompletionHandler:
^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {
if (!error) {
NSLog(#"logged in : %#, id: %#",user.name,user.id);
} else {
NSLog(#"error: %#", error);
}
}];
}
}
so when the session is open, I see this output:
Session is open
error: Error Domain=com.facebook.sdk Code=5 "The operation couldn’t be completed. (com.facebook.sdk error 5.)" UserInfo=0x1fd60620 {com.facebook.sdk:ParsedJSONResponseKey={
body = {
error = {
code = 2500;
message = "An active access token must be used to query information about the current user.";
type = OAuthException;
};
};
code = 400;
}, com.facebook.sdk:HTTPStatusCode=400}
On facebook app page, I have set AppId to 0 since it is not uploaded yet. BundleId is set correctly.
What am I missing or is there any other way to do so?

Answer 1

You should set your appDelegate.session as the active session by calling
[FBSession setActiveSession:appDelegate.session];
when you open it.
This is because FBRequest's requestForMe method uses the active session (as stated in the docs).