title: React Native Error Advice - The development server returned response error code:500
body: <p>I am using React Native and encountered the following error on my android emulator</p>
  
  <p><a href="https://i.stack.imgur.com/FqDjZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FqDjZ.png" alt="enter image description here"></a></p>
  
  <p>I am new to React Native and was coding in App.js. I watched a tutorial online on how to use react-navigation so I was following it and created a homestack.js file. My app.js file was still working perfectly fine at this point.</p>
  
  <p>I added code to homestack.js and then imported it to my app.js file but that's when this error popped up. This error was not resolved when I commented out all of the code on homestack.js nor when I commented out the import on my app.js file.</p>
  
  <p>I followed the instructions on the error (clear watchman, delete node modules, yarn install, yarn reset cache) but this also did not resolve the issue.</p>
  
  <p><strong>The fix:</strong>
  Since none of the above fixed the issue, I removed the homestack.js file from my root folder completely which then fixed the issue. What I did not expect however was that when I put the homestack.js file back into the root folder to see what would happen, the app ran again fine with no issues. It was as if the error never happened.</p>
  
  <p>I guess my question is, what was the actual issue here? Why did taking the file out of the folder and then placing it back in fix the issue? I ran 'npx react-native run-android' after every step of the above fix process so the issue was not because the emulator was running an old version. </p>