react-native: [0.45.0] Project roots are incorrect if packager starts when invoking `react-native run-ios`

Steps for reproduction

First make sure you have no react-native packager instance running

react-native init Bananas
cd Bananas
react-native run-ios

Effect

I get the error

Cannot find entry file index.ios.js in any of the roots: ["/Users/dshe/code/Bananas/node_modules/react-native/packager"]

Workaround

Start the packager from yarn start

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 10
Comments: 26 (2 by maintainers)

Commits related to this issue

Stronger config types Summary: Splits `ConfigT` into `ConfigT` (core + packager configuration) and `RNConfig` (RN CLI configuration). Also guarantees that all values on `ConfigT` have a default when ... — committed to facebook/react-native by davidaurelio 7 years ago

Most upvoted comments

In my case:

Open terminal Tab 01: react-native start Open terminal Tab 02: react-native run-ios

Should work :-p

anhtuank7c on Jun 8, 2017

OmgDef on Jun 7, 2017

@kostap13 Hmm. Here is what I did to resolve the error:

Do not close the terminal window of the server that threw the error.
lsof -n -i4TCP:8081
kill -9 (process id returned above)
npm start

dmr07 on Jun 8, 2017

I used this solution and succeed twice (one for upgrading from 0.44 to 0.45, one for downgrading from 0.46 to 0.45)

ethanyanjiali on Jun 8, 2017

@MSchmidt @ds300 Like I said

but react-native run-ios works for me after i cleaned up everything through the commands I listed above

Let me rephrase the solution again:

open you simulator, delete the app
watchman watch-del-all
rm -rf node_modules && npm install
npm start -- --reset-cache
STOP you packager that started by last command
react-native run-ios

ethanyanjiali on Jun 8, 2017

Maybe this commit broke build https://github.com/facebook/react-native/commit/236e9e4d01f60225855477b710fd4b5e1b8817fb

kostap13 on Jun 8, 2017

I got this when doing react-native run-android as well (this is with a brand new project created with react-native init TestProject3), so I don’t think the problem is limited to ios.

dcp12345678 on Jun 7, 2017