undefined is not an object (evaluating this.sockets.initialize)

[LucasSouzaa]

this.socket = new SocketIO('http://myserver.com:3000/', {secure: true}); this.socket.on('connect', () => { this.socket.emit('authentication', { token: this.state.valid, id_user: this.state.id });

I`m using react-native 0.42
getting this error just in iOs

[crqrdotcom]

Same on react-native@0.43.1 and react@16.0.0-alpha.6

[ginniecodes]

Same issue trying with iOS, using react-native@0.42.3 and react@15.4.1.

[juboba]

Same here with react-native@0.43.1, any ideas why can this be?

[atlas1119]

Same here with react-native@0.44.2, who can solve this problem？？

[blackavec]

by my understanding, it means there is something wrong from xcode swift codes.
when i checked: let SocketIO = NativeModules.SocketIO; SocketIO is undefined
means somehow bridge from swift to objective-c is not working properly or it works but react native cannot bridge it to JS.
i still trying to make it work but so far couldn't find a cure :(

[jose920405]

+1

[zhangsir199]

If NativeModules.SocketIO is undefined, check android step3 :
In MainApplication.java, modify getPackages，and compile new apk.

[ArturGraefenstein]

Any solutions here?