Can't find variable: Symbol

[jeffreyvanhees]

Hi folks,

On a fresh project; when I export a component with export default view(ScreenName); I got the exception Can't find variable: Symbol. This only occurs in Android (emulator and real device).

Without the view()-method the error is gone.

Only the following packages are installed:

"react-easy-state": "^6.0.6",
"react-native": "0.58.3",
"react-native-gesture-handler": "^1.0.15",
"react-native-vector-icons": "^6.2.0",
"react-navigation": "^3.0.9"

What's wrong?

[jeffreyvanhees]

Fixed by installing and configuring JavaScriptCore!

See https://github.com/react-native-community/jsc-android-buildscripts

[solkimicreb]

Hi! I know that you solved the issue already, but I have a few questions if you don't mind 🙂(ES6 support is catching up there is a chance that you don't need a custom JSC core). Did you start the new project with Expo?

[jeffreyvanhees]

Hi! No, without expo. Pure react-native

[solkimicreb]

Then there is a little more wait involved. The next react-native version (v59) will likely include a modern JSC by default (facebook/react-native#19737 (comment)).