iPhone , SLComposeViewController xcode 4.5 - iphone

Question

I have written this code:
self.accountStore = [[ACAccountStore alloc]init];
ACAccountType *FBaccountType= [self.accountStore accountTypeWithAccountTypeIdentifier:
ACAccountTypeIdentifierFacebook];
NSString *key = #"987654"; //put your own key from FB here
NSDictionary *dictFB = //use ACAccountStore to help create your dictionary
[self.accountStore requestAccessToAccountsWithType:FBaccountType
options:dictFB
completion: ^(BOOL granted, NSError *e) {
if (granted)
{
NSArray *accounts = [self.accountStore accountsWithAccountType:FBaccountType];
//it will always be the last object with SSO
self.facebookAccount = [accounts lastObject];
}
else
{
//Fail gracefully...
NSLog(#"error getting permission %#",e);
}
}];
NSURL *requestURL = [NSURL URLWithString:#"https://graph.facebook.com/me"];
SLRequest *request = [SLRequest requestForServiceType:SLServiceTypeFacebook
requestMethod:SLRequestMethodGET
URL:requestURL
parameters:nil];
request.account = self.facebookAccount;
[request performRequestWithHandler:^(NSData *data,
NSHTTPURLResponse *response,
NSError *error) {
if(!error)
{
NSDictionary *list =[NSJSONSerialization JSONObjectWithData:data
options:kNilOptions error:&error];
NSLog(#"Dictionary contains: %#", list );
}
else
{
//handle error gracefully
}
}];
-(void)accountChanged:(NSNotification *)notif//no user info associated with this notif
{
[self attemptRenewCredentials];
}
-(void)attemptRenewCredentials
{
[self.accountStore renewCredentialsForAccount:(ACAccount *)self.facebookAccount
completion:^(ACAccountCredentialRenewResult renewResult, NSError *error) {
if(!error)
{
switch (renewResult)
{
case ACAccountCredentialRenewResultRenewed:
NSLog(#"Good to go");
[self get];
break;
case ACAccountCredentialRenewResultRejected:
NSLog(#"User declined permission");
break;
case ACAccountCredentialRenewResultFailed:
NSLog(#"non-user-initiated cancel, you may attempt to retry");
break;
default:
break;
}
}
else
{
//handle error gracefully
NSLog(#"error from renew credentials%#",error);
}
}];
}
It works great on iPhone simulator (iOS 6) but it dosent work on my iPhone (iOS 6). It dosen't show the SLComposeViewController.