Iphone TTRequestLoader最大内容大小问题

尝试使用TTRequestLoader加载大文件时，我遇到以下错误：

2011-06-30 07:25:21.782 xxxxxxx[1261:607] -[TTRequestLoader connection:didReceiveResponse:](317):
 TTDASSERT failed: 0 == _queue.maxContentLength || contentLength <=_queue.maxContentLength

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断言上面有以下内容：

// If you hit this assertion it's because a massive file is about to be downloaded.
// If you're sure you want to do this, add the following line to your app delegate startup
// method. Setting the max content length to zero allows anything to go through. If you just
// want to raise the limit, set it to any positive byte size.
// [[TTURLRequestQueue mainQueue] setMaxContentLength:0]

因此，调用

[[TTURLRequestQueue mainQueue]setMaxContentLength:0]

应该可以做到这一点

// If you hit this assertion it's because a massive file is about to be downloaded.
// If you're sure you want to do this, add the following line to your app delegate startup
// method. Setting the max content length to zero allows anything to go through. If you just
// want to raise the limit, set it to any positive byte size.
// [[TTURLRequestQueue mainQueue] setMaxContentLength:0]