title: Expo encountered a fatal error: Error: Requiring unknown module "./locale/en-us"
body: <p>I had to eject my Expo project last week, and I though everything was working fine (dev version).</p>
  <p>I'm now testing on an actual device with a build (apk) and it crashes at boot. I used adb logcat for my device to print out the error and got this :</p>
  <pre><code>Requiring unknown module &quot;./locale/en-US&quot;.
  ReactNativeJS: Error: Requiring unknown module &quot;./locale/en-us&quot;.
  WARNING: getPackageName called on ScopedContext
  WebViewFactory: Loading com.google.android.webview version 86.0.4240.198 (code 424019833)
  AndroidRuntime: Shutting down VM
  AndroidRuntime: FATAL EXCEPTION: main
  AndroidRuntime: Process PID: 21039
  AndroidRuntime: java.lang.RuntimeException: Expo encountered a fatal error: Error: Requiring unknown module &quot;./locale/en-us&quot;., stack:
  AndroidRuntime: v@2:1305
  AndroidRuntime: d@2:875
  AndroidRuntime: vt@1203:16827
  AndroidRuntime: pt@1203:16651
  AndroidRuntime: kt@1203:16926
  AndroidRuntime: I@694:2048
  AndroidRuntime: _r@103:40603
  </code></pre>
  <p>I looked on StackOverflow and Google and it seems to be linked to the way moment requires locales. I tried every solutions I could find without any luck.</p>
  <p>Anyone has an idea ? Thank in advance!</p>