title: [__NSCFNumber length]: unrecognized selector sent to instance UITableView
body: <p>i'm experiencing an error</p>
  
  <blockquote>
    <p>[__NSCFNumber length]: unrecognized selector sent to instance 0x15580c90
    2014-02-18 15:10:49.490 CIB[1706:60b] <strong>* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber length]: unrecognized selector sent to instance 0x15580c90'
    *</strong> First throw call stack:
    (0x2da18e83 0x37d756c7 0x2da1c7b7 0x2da1b0af 0x2d969dc8 0x2e33b695 0x2e33b169 0x301ab2fd 0x1603ad 0x302cf315 0x302776cd 0x30276ef1 0x3019d353 0x2fe23943 0x2fe1f167 0x2fe1eff9 0x2fe1ea0d 0x2fe1e81f 0x2fe1854d 0x2d9e3f69 0x2d9e18f7 0x2d9e1c43 0x2d94c471 0x2d94c253 0x326862eb 0x30201845 0x113de1 0x3826eab7)
    libc++abi.dylib: terminating with uncaught exception of type NSException</p>
  </blockquote>
  
  <p>I have loop here. from array in Json to my model tasklist then stored to NSMutableArray _tasklist</p>
  
  <pre><code>NSArray *taskJson = [json objectForKey:@"fOTaskListModelWss"];
  
      for (NSDictionary *dictCQ in taskJson) {
          NSLog(@"TASKLIST: %@", [dictCQ objectForKey:@"foTaskListModelWs"]);
  
          NSDictionary *datadic = [dictCQ objectForKey:@"foTaskListModelWs"];
          TaskList *task = [[TaskList alloc]init];
          [task setTaskCount:datadic[@"count"]];
          [task setFuncCd:datadic[@"funcCd"]];
          [task setFuncCdDscp:datadic[@"funcCdDscp"]];
          [task setRequestStatus:datadic[@"requestStatus"]];
          [task setRole:datadic[@"role"]];
          [_taskList addObject:task];
      }
  </code></pre>
  
  <p>then here is my code in cellForRowAtRowPathIndex</p>
  
  <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
  static NSString * simpleTableIdentifier = @"MenuTableViewCell";
  MenuTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
  if (cell == nil) {
      NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"MenuTableViewCell" owner:self options:nil];
      cell = [nib objectAtIndex:0];
  }
  TaskList *txn = [_taskList objectAtIndex:indexPath.row];
  cell.titleLabel.text = txn.funcCdDscp;
  cell.totalCountLabel.text = txn.taskCount;
  return cell;}
  </code></pre>