Ios 执行FQLRequest时出错

我在视图控制器中通过特定方法执行FQL请求。 这是我的要求

NSString* fql = [[NSString alloc] init];
fql = [NSString stringWithFormat:@"SELECT uid, name FROM user WHERE uid IN(SELECT uid FROM event_member WHERE eid= %@) AND sex='female'", event_id];

    NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObject:fql forKey:@"query"];
    [[Facebook shared] requestWithMethodName:@"fql.query" andParams:params andHttpMethod:@"POST" andDelegate: self];
        [fql release];

但是，当我第二次启动请求时，在使用NSZombieEnabled时出现了错误：

-[CFString release]：消息发送到解除分配的实例0x4cb9ec0

线程指向FBRequest.m中的[\u参数释放]

尝试使用更改请求时

    fql = @"SELECT uid, name, sex FROM user WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) AND sex = 'male'";

我不再犯这个错误了

以下是fbrequest委托方法

- (void)request:(FBRequest *)request didReceiveResponse:(NSURLResponse *)response {
    NSLog(@"FBRequestDelegate Received response");
}

- (void)request:(FBRequest *)request didLoad:(id)result {
    NSLog(@"FBRequestDidLoad Received response");
    self.allListProfils = result;
    NSLog(@"all listprofil :%@", allListProfils);
    [self resetSearch];
    [DSBezelActivityView removeViewAnimated:YES];
    moreButton.hidden = NO;
    [table reloadData];
};

- (void)request:(FBRequest *)request didFailWithError:(NSError *)error {
    NSLog(@"FBRequestDidFailWithError Received response, Error is : %@",[error description]);
};

这对你们中的一些人来说有什么意义吗

谢谢：）