Error while fetching Facebook friends in iOS - ios

Question

I'm trying to fetch facebook friendlist of a logged in user and it works fine in my account, but when I migrated the app details to a new account and changed the app ID and app secret I'm getting this error below
Error Domain=com.facebook.sdk Code=5 "The operation couldn’t be completed. (com.facebook.sdk error 5.)" UserInfo=0xf89c0b0 {com.facebook.sdk:HTTPStatusCode=400, com.facebook.sdk:ParsedJSONResponseKey={
body = {
error = {
code = 100;
message = "(#100) Unknown fields: username.";
type = OAuthException;
};
};
code = 400;
}, com.facebook.sdk:ErrorSessionKey=<FBSession: 0xe5a6c30, state: FBSessionStateOpen, loginHandler: 0xe58d5a0, appID: 705259966179163, urlSchemeSuffix: , tokenCachingStrategy:<FBSessionTokenCachingStrategy: 0xf87b180>, expirationDate: 4001-01-01 00:00:00 +0000, refreshDate: 2014-05-20 07:14:50 +0000, attemptedRefreshDate: 0001-12-30 00:00:00 +0000, permissions:(
status,
permission
)>}
This is my current code for fetching friends
- (BOOL)retrieveFacebookFriendsForProfileId:(NSString *)fbProfileId completionBlock:(void (^)(NSArray *, NSError *))completionBlock
{
[FBSession openActiveSessionWithReadPermissions:nil
allowLoginUI:YES
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
if (error) {
NSLog(#"Error");
} else if (session.isOpen) {
[[FBRequest requestForMe] startWithCompletionHandler: ^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {
if (error) {
//Throws the code 100 error here
completionBlock(nil, error);
}else{
FBRequest* friendsRequest = [FBRequest requestForMyFriends];
[friendsRequest startWithCompletionHandler: ^(FBRequestConnection *connection,NSDictionary* result,NSError *error) {
if(error)
completionBlock(nil, error);
else
{
NSArray *friendJSONs = [result objectForKey:#"data"];
NSMutableArray *friends=[NSMutableArray array];
for(NSDictionary * friendDict in friendJSONs)
{
SocialProfile *friend=[[SocialProfile alloc] initWithDictionary:friendDict socialMedia:kSocialMediaFacebook];
[friends addObject:friend];
}
completionBlock(friends, nil);
}
}];
}
}];
}
}];
return YES;
}
This code works fine if I use my old app Id and secret. I checked the setting in new account and everything is same as I have done in my old account I dont understand what the problem is. Any help is appreciated

Answer 1

According to https://developers.facebook.com/docs/apps/changelog
Friend list now only returns friends who also use your app: The list of friends returned via the /me/friends endpoint is now limited to the list of friends that have authorized your app.
So I changed my above code to this and it gave me list of friends that use the app and not the whole FB friendlist
FBRequest *friendsRequest = [FBRequest requestForGraphPath:#"/me/friends"];