title: How to enable DocumentsLibrary capability in a Windows store (WinRT) app?
body: <p>I just created a new blank XAML/C# Windows Store app in Visual Studio. I tried to create a file in the Documents folder with this code:</p>
  
  <pre><code>// DEBUG ONLY:
  StorageFile file = await KnownFolders.DocumentsLibrary.CreateFileAsync("Hey lol.txt");
  </code></pre>
  
  <p>But it throws this exception (which I expected):</p>
  
  <blockquote>
    <p>WinRT information: Access to the specified location (DocumentsLibrary) requires a capability to be declared in the manifest.</p>
  </blockquote>
  
  <p>Which is fine. I expected it. So I go to <code>Package.appxmanifest</code> and go to <code>Capabilities</code> tab, and to my surprise, there is no "DocumentsLibrary" capability listed.</p>
  
  <p>How do I enable it if it's not even there?</p>
  
  <p><img src="https://i.stack.imgur.com/QuSOt.png" alt="enter image description here"></p>