i'm working on a react native project with expo and yarn and needed to install a new dependency to get device manufacturer (it's react-native-device-info if you are wondering). I installed it successfully, implemented it in my code, but upon opening the app with expo go i was shown an error message
@React-native-community/react-native-device-info: NativeModule.RNDeviceInfo is null. To fix this issue follow these steps: *useless steps*Looking up in the github repo i found lots issues addressing this (and the developer answering it was not his problem because it worked on his example). From what i understood that error is his corresponding of Native module cannot be null. So my question is: how can it be that a Native module is null? What might be the cause?
I wanted to solve this problem myself, but having no knowledge of how this error is brought up or how native modules work i don't even know where to start. I read that it could be a linking problem, but RN versions over 0.59 should have autolinking and even manual linking didn't help. Even reinstalling everything didn't help. Searching through his code i found the piece of code i will leave down here, that is the exact place where the error is triggered, but i have no idea of how we get there.
File: nativeinterface.ts
import { Platform, NativeModules } from 'react-native';import { DeviceInfoNativeModule } from './privateTypes';let RNDeviceInfo: DeviceInfoNativeModule | undefined = NativeModules.RNDeviceInfo;// @ts-ignoreif (Platform.OS === 'web' || Platform.OS === 'dom') { RNDeviceInfo = require('../web');}if (!RNDeviceInfo) { // Produce an error if we don't have the native module if ( Platform.OS === 'android' || Platform.OS === 'ios' || Platform.OS === 'web' || // @ts-ignore Platform.OS === 'dom' ) { throw new Error(`@react-native-community/react-native-device-info: NativeModule.RNDeviceInfo is null. To fix this issue try these steps:• For react-native <= 0.59: Run \`react-native link react-native-device-info\` in the project root.• Rebuild and re-run the app.• If you are using CocoaPods on iOS, run \`pod install\` in the \`ios\` directory and then rebuild and re-run the app. You may also need to re-open Xcode to get the new pods. If none of these fix the issue, please open an issue on the Github repository: https://github.com/react-native-community/react-native-device-info`); }}export default RNDeviceInfo as DeviceInfoNativeModule;Let me know if you need additional information or if i'm getting something wrong.
versions:
React Native => 0.62.2expo => 38react-native-device-info => 6.0.0yarn => 1.22.5