TypeError: Cannot read property 'scan' of undefined

Question

TypeError: Cannot read property 'scan' of undefined

jasenkabalac opened this issue 5 years ago · comments

jasenkabalac commented 5 years ago

I'm using your sample app in Expo .
zeroconf.scan('http', 'tcp', 'local.') is not working

jkaravakis · Answer 1 · Sat Oct 26 2019 01:26:22 GMT+0800 (China Standard Time)

I am having the same issue. I am not using Expo and am using React Native v0.61.2 and react-native-zeroconf v0.11.4.

jkaravakis · Answer 2 · Sun Oct 27 2019 01:33:01 GMT+0800 (China Standard Time)

Hey @jasenkabalac restarting my metro bundler worked for me!

Zachary Litvinenko · Answer 3 · Fri Aug 27 2021 17:44:28 GMT+0800 (China Standard Time)

I get the same error when trying to expo start --web or run it on my iOS device in the expo go app.
I tried restarting the project from scratch and restarting the IDE. I still get the same error.

Zachary Litvinenko · Answer 4 · Fri Aug 27 2021 17:45:56 GMT+0800 (China Standard Time)

While when I console.log(zeroconf) it's not undefined or null, and zeroconf.scan is not null either.
But when I add parentheses it throws that error and I don't know what to do.

balthazar · Answer 5 · Fri Aug 27 2021 21:31:40 GMT+0800 (China Standard Time)

Expo doesn't work with native modules, there's plenty of issues about this already