Hi,

The version of tradle/react-native-udp has been updated to 3.1.0 but it's still using ^2.1.0 after run ./node_modules/.bin/rn-nodeify --hack --install --yarn.

The same problem is also with react-native-tcp. Since it has been deprecated, it will cause the duplicate symbol issue as well (like #93). I guess it should be replaced by any active module like react-native-tcp-socket (by @Rapsssito).

The older versions of react-native-udp and react-native-tcp both contain a copy of CocoaAsyncSocket or CocoaAsyncUdpSocket which are already introduced by RN per se. New versions are using them as pod dependency to solve the problem.

After I changed them manually, the iOS project can be compiled without errors.

BUT, it will cause runtime issues, like:

Unable to resolve module `stream` from `node_modules/cipher-base/index.js`: stream could not be found within the project.
Unable to resolve module `crypto` from `node_modules/sjcl/sjcl.js`: crypto could not be found within the project.
...

Any idea about this?

Solution

Add this to metro.config.js

resolver: {
    extraNodeModules: {
        crypto: require.resolve('crypto-browserify'),
        stream: require.resolve('stream-browserify'),
        ...
    },
},

Also, any alternative lib can be added this way.