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copied!<p>Okay, so the issue here is one of <code>Task.Run</code> and the way it handles <code>async delegates</code>. Basically, when you say:</p> <pre><code>Task.Run(async () => ...) </code></pre> <p>What it's returning to you is not the plain-jane <code>Task</code> you are expecting it to. It's returning that task <em>wrapped in another task</em>, i.e., a Task. So in order to get the task out that you're looking for (the one that retrieves the StorageFolder), you need to <code>await</code> the outer task. You can do this simply by changing when you add it to the <code>tasks</code> list:</p> <pre><code>tasks.Add(await task); </code></pre> <p>Now, there is a second issue. You're doing a bunch of reading from the same folder possibly all at the same time. This may cause some <code>AccessExceptions</code>. It may also not. I would just be careful when doing this.</p> <p>I have had problems doing file read/write in unit tests in WinRT. Luckily, I am using Mvvm (through Mvvm Light) and have wrapped my local storage accessing inside of a <code>Controller</code>. What this has allowed me to do is to write a <code>LocalStorageController</code> just for Unit testing that allows me to do all of my IO to a file system in memory (basically a simple <code>Dictionary<string, byte[]></code>). This does make testing complex file trees a bit more difficult, but you could also use a different data structure (such as an actual <code>Tree</code>) to model your file system.</p> <p>Anyway, I hope this helps. I apologize that it was so long after you asked it, though. Happy coding!</p>

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