Unhandled 'error' event when running yarn run haul start -- --platform ios

[lucqui]

Current Behavior

I get the error when running yarn run haul start -- --platform ios

events.js:163
throw er; // Unhandled 'error' event
^

Error: listen EADDRINUSE 127.0.0.1:8081
at Object.exports._errnoException (util.js:1034:11)
at exports._exceptionWithHostPort (util.js:1057:20)
at Server._listen2 (net.js:1265:14)
at listen (net.js:1301:10)
at doListening (net.js:1416:7)
at _combinedTickCallback (internal/process/next_tick.js:83:11)
at process._tickCallback (internal/process/next_tick.js:104:9)
at Module.runMain (module.js:607:11)
at run (bootstrap_node.js:423:7)
at startup (bootstrap_node.js:147:9)
error Command failed with exit code 1.

Expected Behavior

It should run w/o errors.

Haul Configuration (webpack.haul.js)

module.exports = ({ platform }) => ({
entry: ./index.${platform}.js,
});

Your Environment

I'm running on a macbook and trying to run this react-native + redux project.

software	version
Haul	0.21.3
react-native	0.42.3 (2.0.1 for the react-native-cli)
node	v7.8.0
npm or yarn	4.2.0 (0.21.3 for yarn)

[satya164]

Something else is running on the same port. Check for other instances of React Native packager or Haul running in another Terminal.

[skellock]

EADDRINUSE 127.0.0.1:8081 probably means your react-native packager is running. Have a look through your open terminal windows. If you can't find it and you're still angry, sudo lsof -i :8081 and kill -9 <pid> will teach it a lesson.