TFS Build Notifications not showing any projects
<p>I have multiple team projects in TFS (Visual Studio Online), each having 1 or more build definitions (non-XAML). I'd like to use the Build Notifications tray app to monitor these builds, however none of my projects show in the options:</p>

<p><a href="https://i.stack.imgur.com/dAxg4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dAxg4.png" alt="enter image description here"></a></p>

<p>Here is a screenshot of the build definitions for one of my team projects to show that they are defined and enabled:</p>

<p><a href="https://i.stack.imgur.com/LAwUi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LAwUi.png" alt="enter image description here"></a></p>

<p>Things I've tried but did not help:</p>

<ul>
<li><a href="https://stackoverflow.com/questions/28841062/tfs-build-notification-options-not-populating-build-definitions">This other question</a> identifies the same problem but the answer did not help me. I am already using the correct version of the Build Notifications app -- I have Visual Studio 2013 (the latest version installed on my computer) and I am using BuildNotificationApp.exe from <em>C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE</em>.</li>
<li>In Visual Studio I reconnected to my team projects.</li>
<li>Based on a comment I read somewhere, I emptied all temp folders and restarted my computer.</li>
</ul>

<p>Any idea what's going on? Is it a bug? Is some security restriction getting in the way? Are Visual Studio Online's build definitions no longer compatible with the Build Notifications app?</p>