iOS Facebook SDK "An active access token must be used to query information about the current user."

Question

I have a token but keep getting this error: "An active access token must be used to query information about the current user." Any help is appreciated :)

    NSLog(@"TOKEN : %@",[[FBSession activeSession] accessToken]);

    NSString *picture = [NSString stringWithFormat:@"http://www.prowebdev.org/WooF/API/OpenGraph.php"];
    NSString *image = [NSString stringWithFormat:@"http://www.prowebdev.org/WooF/API/upload/356.jpg"];
    NSString *imageBool = [NSString stringWithFormat:@"true"];

    NSMutableDictionary *myDictionary = [NSMutableDictionary dictionaryWithObjects:[NSArray arrayWithObjects:picture,image,imageBool, nil] forKeys:[NSArray arrayWithObjects:@"picture",@"image[0][url]",@"image[1][user_generated]", nil]];

    FBRequest *request  = [FBRequest requestWithGraphPath:@"me/mydogwoofs:posted" parameters:myDictionary HTTPMethod:@"POST"];
    FBRequestConnection *connection  = [[FBRequestConnection alloc] init];
    [connection addRequest:request completionHandler:
     ^(FBRequestConnection *connection, id result, NSError *error) {
         if (!error && result) {
             NSLog(@"Posted!");
         }else{
             NSLog(@"ERROR - %@", error);
         }
     }];
    [connection start];

LOG:

TOKEN : CAAD2QmzDZCHUBALgvURs9AmdO0ZCyj4Uws1pHbX9FYMbptaZAehn6318DEQPyiWpCDWs5O4DXoyAHiBajy37HAdkO648mOgpOZCxc73JhR9n0eO3KejeEkmgKTNSJti2GRmGuZCfhVm9X4cQhhk35ksfEdN8AGR7R6aP3dZBGFWQZDZD

Error: HTTP status code: 400
ERROR - Error Domain=com.facebook.sdk Code=5 "The operation couldn’t be completed. (com.facebook.sdk error 5.)" UserInfo=0x8b8abd0 {com.facebook.sdk:ParsedJSONResponseKey=<CFBasicHash 0x8b88fe0 [0x1bc3b48]>{type = mutable dict, count = 2,
entries =>
1 : <CFString 0x952a8 [0x1bc3b48]>{contents = "code"} = <CFNumber 0x8b885d0 [0x1bc3b48]>{value = +400, type = kCFNumberSInt32Type}
2 : <CFString 0x93eb8 [0x1bc3b48]>{contents = "body"} = <CFBasicHash 0x8b75ae0 [0x1bc3b48]>{type = mutable dict, count = 1,

entries =>
11 : <CFString 0x8b88f20 [0x1bc3b48]>{contents = "error"} = <CFBasicHash 0x8b888d0 [0x1bc3b48]>{type = mutable dict, count = 3,

entries =>
2 : <CFString 0x8b5f550 [0x1bc3b48]>{contents = "type"} = <CFString 0x8b88aa0 [0x1bc3b48]>{contents = "OAuthException"}
3 : <CFString 0x8b88a40 [0x1bc3b48]>{contents = "message"} = <CFString 0x8b889a0 [0x1bc3b48]>{contents = "An active access token must be used to query information about the current user."}
6 : <CFString 0x8b88e40 [0x1bc3b48]>{contents = "code"} = 2500

Answer 1

Ok, what worked for me was using a solution from the friendpicker sample app.

Need to check if the session is opened and open it if it isn't.

if (!FBSession.activeSession.isOpen) {
    // if the session is closed, then we open it here, and establish a handler for state changes
    [FBSession openActiveSessionWithReadPermissions:nil
                                       allowLoginUI:YES
                                  completionHandler:^(FBSession *session,
                                                         FBSessionState state,
                                                         NSError *error) {
        if (error) {
            UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error"
                                                                message:error.localizedDescription
                                                               delegate:nil
                                                      cancelButtonTitle:@"OK"
                                                      otherButtonTitles:nil];
            [alertView show];
        } else if (session.isOpen) {
            //run your user info request here
        }
    }];