React-native-pager-view: InvariantViolation : requireNativeComponent RNCViewpager was not found in the UI manager

[sharief-edv]

[ferrannp]

It looks like you did not run react-native link @react-native-community/viewpager ?

[sharief-edv]

I do ran that , But the mistake i have done before was _(I DID NOT MENTION IT FIRST )_ , i didn't run yarn add @react-native-community/viewpager at first instead i have ran the _npm install --save @react-native-community/viewpager_ as i thought i have to do npm not yarn . After i realized and ran yarn command followed by link command , i am getting the same error.

[ferrannp]

Is the example in this repository working for you?

[sharief-edv]

No @ferrannp , I am getting error

[SSWeedie]

I am also getting this error, so what is the solution ?

[ferrannp]

What about not linking / using it in iOS for now? It is not implemented on iOS anyway.

[SSWeedie]

Still get the same error without linking

[ferrannp]

@SSWeedie can I see some code? You should only link it on Android but specially on JS, you should only require it for Android.

[renishdeveloper]

Getting the same error
Invariant Violation: Invariant Violation:
requireNativeComponent : "RNCViewPager" was not found in the UIManager".

I run both the commands

1. For installation
   npm install @react-native-community/viewpager
2. For linking the library
   react-native link @react-native-community/viewpager

System configuration :
System:
OS: Linux 4.15 Ubuntu 18.04.2 LTS
CPU: (6) x64 AMD FX(tm)-6300 Six-Core Processor
Memory: 920.17 MB / 3.59 GB

Binaries:
  Node: 8.16.0
  npm: 6.4.1
npmPackages:
  react: 16.8.3 => 16.8.3 
  react-native: 0.59.5 => 0.59.5 
npmGlobalPackages:
  react-native-cli: 2.0.1

[ferrannp]

Can someone post a repo where this can be reproduced?

[renishdeveloper]

@ferrannp Here is the complete code with the implementation steps :

For installation
npm install @react-native-community/viewpager

For linking the library
react-native link @react-native-community/viewpager

Not followed the manual steps as the react-native link @react-native-community/viewpager command does it for me.

Import view pager
import ViewPager from "@react-native-community/viewpager";

ViewPager component

<ViewPager style={styles.viewPager} initialPage={0}> <View key="1"> <Text>First page</Text> </View> <View key="2"> <Text>Second page</Text> </View> </ViewPager>

Let comment if works for anyone

[AppUU]

Add the RNCViewPagerPackage class to your list of exported packages.

[ferrannp]

@renishdeveloper that works for me. Do you have a repository I can try?

[sangyakhare]

Same error here for ViewPager on Android.

I am also struggling with a similar error stating RNCWebview not found in UIManager for WebView as well for Android and reported here. Everything works well for iOS. Its very frustrating.

I did npm install and than react-native link. Then checked if the ViewPager is linked properly in Android by looking at Application.java, build.gradle(for app) and settngs.gradle files and ViewPager has appropriate entries in all the files mentioned above.

Why UIManager has so many missing reactNativeComponent?

[AA25]

I don't know if this is useful or not, but I was also getting this issue with a fresh new project. I tried manually linking but that didn't seem to fix the problem. Again, since it was a new project I decided to delete the project and tried again. But this time adding and linking viewpager before running the app on android and creating a component making use of viewpager. It works now thankfully though I'm not fully sure why

[troZee]

I checked examples and work. I also tested a fresh project and I ran below commands

mkdir toDelete
cd toDelete/
react-native init AwesomeProjectToDelete
cd AwesomeProjectToDelete/
yarn 
yarn add @react-native-community/viewpager
react-native link @react-native-community/viewpager
react-native run-ios
react-native run-android

Both commands react-native run-ios and react-native run-android work with no errors.
My configuration:

  React Native Environment Info:
    System:
      OS: macOS 10.14.4
      CPU: (8) x64 Intel(R) Core(TM) i5-8259U CPU @ 2.30GHz
      Memory: 1.74 GB / 16.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 11.14.0 - /usr/local/bin/node
      Yarn: 1.15.2 - /usr/local/bin/yarn
      npm: 6.9.0 - /usr/local/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    SDKs:
      iOS SDK:
        Platforms: iOS 12.2, macOS 10.14, tvOS 12.2, watchOS 5.2
    IDEs:
      Android Studio: 3.4 AI-183.5429.30.34.5452501
      Xcode: 10.2/10E125 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.8.3 => 16.8.3 
      react-native: 0.59.9 => 0.59.9 
    npmGlobalPackages:
      react-native-cli: 2.0.1
      react-native-create-library: 3.1.2

Did you linked this lib manually or used above commands ?
@AA25
If you want to link lib manually, checkout example dir.

[DanielVenturini]

I've linked the react-native-viewpager using the command in Android, but it doesn't link in following file:

android/app/src/main/.../MainApplication.java

After I linked manually, it works for me.

For full manually link:
https://github.com/react-native-community/react-native-viewpager/blob/master/README.md#android

[DrobyshevAlex]

How i can use https://github.com/react-native-community/react-native-viewpager/blob/master/README.md#android
if i use expo? I have't 'android' folder

[ferrannp]

@DrobyshevAlex you cannot as this library is not supported by Expo. You would have to eject your project.

I am closing this issue as there is no reproducible repro and it is working fine for me in the example and in a new project created with `react-native init.

[jaythakkar2807]

@ferrannp, I have installed "yarn add @react-native-community/viewpager" and then follow the steps but It not run in expo.

[MelchizedekV]

1.cd ios
2.sudo gem install cocoapods
3.Pod install

[yzalvov]

@DrobyshevAlex you cannot as this library is not supported by Expo. You would have to eject your project.

The interesting thing is that Expo people recommend using the react-native-viewpager instead of one of their deprecated interface. It is literally the first-line link on the ViewPagerAndroid page.

[aryojamousi]

I am on RN 61.5 with "@react-native-community/viewpager": "^3.1.0" and got crashes on iOS (not Android) with the said error.
What helped was manually linking the dependancy for iOS:
put

  pod 'react-native-viewpager', :path => '../node_modules/@react-native-community/viewpager'

in your Podfile and run cd ios && pod install

[sushrut-desora]

I had the same issue using react-native 0.61.4 and "@react-native-community/viewpager": "^3.3.0" on android. It was resolved after doing react-native link @react-native-community/viewpager. Why do i have to link it when react native uses auto linking ?

[DatNguyenCore]

i have used library react-native-scrollable-tab-view version 1.0.0, it has dependency @react-native-community/viewpager then error ocurce. But when i downgrade to version 0.10.0 this error is gone.

[brentvatne]

if you're using expo and you have this issue make sure you're on sdk-37 and see this docs page for installation instructions https://docs.expo.io/versions/latest/sdk/view-pager/

[brentvatne]

@yzalvov - we only release sdks once per quarter, so all you need is for someone to make a change in one of the react-native-community repos one day after that release and then there is nothing we can do until the next release. so that is why you would have seen different recommendations in the docs. w

[troZee]

I checked and autolinking for 0.62 here:
https://github.com/troZee/viewPagerExample/tree/autolinking

And everything works fine.

[brambang]

i had same issue, is it maybe the problem is only for expokit app (eject from manage workflow).
Because my apps didnt get any autolinking, include viewpager

[Niz47]

Getting the same error
Invariant Violation: Invariant Violation:
requireNativeComponent : "RNCViewPager" was not found in the UIManager".

I run both the commands

1. ```
   For installation
    npm install @react-native-community/viewpager
   ```

2. ```
   For linking the library
    react-native link @react-native-community/viewpager
   ```

System configuration :
System:
OS: Linux 4.15 Ubuntu 18.04.2 LTS
CPU: (6) x64 AMD FX(tm)-6300 Six-Core Processor
Memory: 920.17 MB / 3.59 GB

Binaries:
  Node: 8.16.0
  npm: 6.4.1
npmPackages:
  react: 16.8.3 => 16.8.3 
  react-native: 0.59.5 => 0.59.5 
npmGlobalPackages:
  react-native-cli: 2.0.1

saved my time :) thanks a million

[sushrut-desora]

i had same issue, is it maybe the problem is only for expokit app (eject from manage workflow).
Because my apps didnt get any autolinking, include viewpager

It might be related to this issue. https://github.com/expo/expo-cli/issues/1398

[narek11]

To make it work on ios I had to do

react-native link react-native-pager-view
cd ios; pod install; cd ..

React Native version "react-native": "0.63.2",
Pager View version "react-native-pager-view": "^5.1.5",