SLRequest gives Parse Error: Expected ] - objective-c

Question

I'm writing a Facebook Parser for iOS6. Yesterday, I made a test project with only the parser. This worked fine. When I want to implement the parser in my bigger project (with exactly the same method code), a "Parse Error: Expected ]" is given. The imports for Social and Accounts are set.
This is the line that gives the error:
SLRequest *retrieveWall = [SLRequest requestForServiceType:SLServiceTypeFacebook requestMethod:SLRequestMethodGET URL:newsFeed parameters:nil];
This is the full method:
-(void)fetchFacebookFrom:(NSString*)userID withAppKey:(NSString*)appKey
{
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore
accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
NSDictionary *options = #{
#"ACFacebookAppIdKey" : appKey,
#"ACFacebookPermissionsKey" : #[#"email"],
#"ACFacebookAudienceKey" : ACFacebookAudienceEveryone
};
[accountStore requestAccessToAccountsWithType:accountType
options:options completion:^(BOOL granted, NSError *error) {
if(granted)
{
NSArray *arrayOfAccounts = [accountStore
accountsWithAccountType:accountType];
if ([arrayOfAccounts count] > 0)
{
ACAccount *facebookAccount = [arrayOfAccounts lastObject];
NSURL *newsFeed = [NSURL URLWithString:#"https://graph.facebook.com/12345678901/feed"];
SLRequest *retrieveWall = [SLRequest requestForServiceType:SLServiceTypeFacebook requestMethod:SLRequestMethodGET URL:newsFeed parameters:nil];
retrieveWall.account = facebookAccount;
[retrieveWall performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error)
{
if (error)
{
NSLog(#"Error: %#", [error localizedDescription]);
}
else
{
// The output of the request is placed in the log.
NSDictionary *jsonResponse = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingAllowFragments error:nil];
NSArray *statuses = [jsonResponse objectForKey:#"data"];
}
}];
}
}
else
{
NSLog(#"Not granted");
}
}];
}
The error specificly points to "URL" in the method call..
This stupid error is driving me crazy for 3 hours already. I restarted XCode, cleaned the project and rebooted my Mac. Who sees the error?
EDIT: It seems that this particular code is not the problem. I added core data too, which has some functions with URL in method names.
Every function with URL in the method name now gives a Parse Error and points to "URL". Getting closer to the problem, but still not there!

Answer 1

We defined URL somewhere in a header file. Removing this fixed it. Thanks for thinking about a solution!