futurice/pepperoni-app-kit

Problem running react-native run-ios

osolano opened this issue · 7 comments

osolano commented

Hello,

I've just tried a fresh clone of the project and followed the getting started instructions but am getting blocked by this error

Can't find variable Symbol

Tapping the first cell on this screenshot points to this area

var isEffectSymbol = Symbol('isEffect');

image

I performed the steps exactly as mentioned on Readme

tino-junge commented

Hi @osolano thanks for reporting this issue. I've just build a fresh clone of pepperoni without issues. I've used the following steps:

git clone git@github.com:futurice/pepperoni-app-kit.git
cd pepperoni-app-kit
yarn install
react-native run-ios

Could you specify your environment setup?

osolano commented

Sure, I'm on

react-native-cli: 2.0.1
react-native: 0.40.0
yarn v0.19.1
npm: 4.1.2
node: 7.5.0
osolano commented

I also just tried update react-native-cli and still have the same error.

react-native-cli: 2.0.1
react-native: 0.41.2
tino-junge commented

Your problem might be related to ES2015 Symbols (see here for more: facebook/react-native#4676). Someone was able to fix it for iOS to install a babel polyfill (https://babeljs.io/docs/usage/polyfill/). Let me know if it solves your issue.

tino-junge commented

Closing this now due to inactivity. Can reopen if the issue still occurs.

Charlie-Hua commented

Adding this line to the top of index.ios.js fixes it for me:

import 'es6-symbol/implement';
FruitieX commented

IIRC iOS < 9.0 does not implement Symbol in their JSC engine. Since #192 was merged, we are using a patched version of redux-loop which uses a Symbol polyfill when needed, which means the problems arising from missing Symbol will be fixed on all platforms regardless of version.

Please re-open if this is not the case.