React-native-fs: Invariant Violation: Native module cannot be null.

[donutsahoy]

Added react-native-fs to my project and receive an Invariant Violation error. Project is using Expo not sure if this is the issue.
My code:

Error:

I have confirmed that my react-native-fs version is compatible with by react-native version.

Any recommendations?

[dakoto747]

Seems like your pods didn't install properly try:

cd ios && pod install && cd ..

And try again.

[vitolipari]

I have the same issue!
I run cd ios && pod install && cd .. but the issue remain

[Nirodha26]

Came across the same issue.

I have missed to update Podfile with following.

pod 'RNFS', :path => '../node_modules/react-native-fs'

Worked fine after doing a pod install. Refer - https://github.com/itinance/react-native-fs#usage-ios

[ThangLeQuoc]

I have the same issue and really hesitate to eject expo to update the Podfile

Updated: We change to use expo file system instead
https://docs.expo.io/versions/latest/sdk/filesystem/

[ghasemikasra39]

I get this error in testing environment only with Jest. Any solution ?

[samking314]

@ghasemikasra39 I have the same issue!

[samking314]

@ghasemikasra39 I found a solution:
create a __mocks__/react-native-fs.js file in your main directory with the following:

const mockedModule = jest.mock('react-native-fs');
module.exports = mockedModule;

then run npm test and should be fine!