title: My app just crashed, how can I get the crash log?
body: <p>I am testing my app on my actual device, and it seems like there is a memory leak. The app has crashed after a couple of hours. How can I pull up the log of the crash?</p>
  
  <p>I plugged my phone in via USB and tried:</p>
  
  <pre><code>adb logcat -v
  </code></pre>
  
  <p>but I get the following message in my terminal:</p>
  
  <pre><code>- waiting for device -
  error: more than one device and emulator
  </code></pre>
  
  <p>How can I diagnose my crash?</p>