react-native-sound: Cannot read property 'IsAndroid' of undefined

On iOS, in fresh project generated by latest version of create-react-native-app: RNSound is not defined in NativeModules of react-native.

"dependencies": {
    "expo": "^18.0.3",
    "react": "16.0.0-alpha.12",
    "react-native": "^0.45.1",
    "react-native-sound": "^0.10.3"
  }

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 14
Comments: 31 (2 by maintainers)

Most upvoted comments

I have this problem running test cases from Jest. Works fine in emulators and hardware for both Android and iOS.

+21

dominictracey on Aug 22, 2017

Restarting Android Studio, my emulator, and terminal seemed to work for me.

+13

JimSchofield on Jun 29, 2017

So basically you’re closing an issue because “it works for me”. That’s not how things works you know?

+11

tirrorex on Jul 12, 2019

Same here. Running through Expo a got this error. Also, I tried another way and got the application broken. captura de tela 2017-06-27 as 22 26 40

gasparteixeira on Jun 28, 2017

You need to delete your derived data in XCode: /Users/{yourUserName}/Library/Developer/Xcode/DerivedData

jpapillon on Jun 28, 2017

create-react-native-app only works with pure JavaScript compontents. So it won’t work with react-native-sound, because it requires native code.

What are the limitations of Create React Native App?

The main limitation of a Create React Native App project is that it must be written in pure JavaScript and not have any dependencies which rely on custom native code (i.e. ones which require running react-native link to work). This allows the projects to load directly on a phone without native compilation, and also means that it’s not necessary to install or use Android Studio or Xcode.

https://github.com/react-community/create-react-native-app#what-are-the-limitations-of-create-react-native-app

gvenk on Aug 30, 2017

Have a look at https://github.com/zmxv/react-native-sound/issues/36#issuecomment-284443489 – this works for me

mikeknapp on Dec 9, 2017

I am running into the same issue, where it builds for IOS but not for Android. It errors out at the import statement with undefined is not an object (evaluating ‘RNSound.IsAndroid’).
Android studio had an error about not being able to have non-gradle java modules and android-gradle modules in one project. screen shot 2017-09-07 at 5 35 11 pm

I think it was resolved once I updated react-native-sound from 23.0.1 to 25.0.0 in studio. I’ve reinstalled react-native-sound, relinked, and rebuilt everything but to no avail. Any help would be appreciated.

i have “react-native”: "0.46.4 and “react-native-sound”: “^0.10.4”

justinTime225 on Sep 8, 2017

FYI … https://docs.expo.io/versions/v17.0.0/sdk/audio.html great stuff for expo users!

gasparteixeira on Jun 28, 2017