CFNetwork internal error : URLConnectionLoader.cpp:289
<p>When I open my application after a while, I received log:</p>

<blockquote>
  <p>440: CFNetwork internal error (0xc01a:/BuildRoot/Library/Caches/com.apple.xbs/Sources/CFNetwork/CFNetwork-758.4.3/Loading/URLConnectionLoader.cpp:289)</p>
</blockquote>

<p>It has never been out in the past.
My project uses a network library AFNetworking and CocoaAsyncSocket.</p>

<p>Why does it occur and how to fix it?</p>