The UI Manager could not locate RNCSlider when attempting to utilize @react-native-community/slider

I am currently in the process of building a slider for my Android App using React Native. I am still relatively new to React Native and came across some challenges while following the documentation. The official React Native Slider component is now deprecated (https://reactnative.dev/docs/slider.html) and it's recommended to use @react-native-community/slider instead (https://github.com/react-native-community/react-native-slider/blob/master/README.md).

To incorporate this new Slider component, I utilized 

npm install @react-native-community/slider --save
in my project directory.

The installation was successful and the versions in my package.json are as follows:

"dependencies": {
    "@react-native-community/slider": "^3.0.3",
    "react": "16.13.1",
    "react-native": "0.63.0" },

In my source file, I imported the Slider component with 

import Slider from '@react-native-community/slider';
. However, upon trying to implement the Slider in my code using the 
<Slider> ... </Slider>
tags, I encountered the following compile error:

ERROR Invariant Violation: requireNativeComponent: "RNCSlider" was not found in the UIManager.

I have been troubleshooting tirelessly but have yet to resolve this error. I am developing on Windows 10 x64 for Android platform. Any assistance would be greatly appreciated!

javascriptandroidreact-nativenpmslider

Answer №1

Dealing with the same issue, I found that following the setup instructions step-by-step is crucial for resolving it:

  1. First, halt the Metro Bundler.
  2. Next, stop the app on the simulator or physical device.
  3. Proceed to run react-native-start.
  4. Finally, execute react-native run-android or launch the app on your physical device.
  5. You're all set!

These steps worked wonders for me in resolving iOS development issues. Hopefully, they prove useful for you working on Android as well!

Answer №2

If you're an Expo user and utilizing a development build (instead of Expo Go), remember to reconstruct your dev build so that the native slider is incorporated into the package. This resolved the problem for me.

Answer №3

To resolve the issue, I found success by executing "npx react-native run-android" in my project directory instead of attempting to use "npx react-native start". The reason behind why this solution works remains unclear, but it triggers the metro server to launch in a separate console window (via cli.js) rather than within powershell itself, ultimately resolving the issue at hand.

Prior to this workaround, I typically launched the app directly from my emulated phone OS, which proved unsuccessful even when the metro server was active in powershell.

Answer №4

I have discovered a foolproof solution! Simply remove the node-modules folder and then proceed to install npm or yarn....

import Slider from '@react-native-community/slider';
 <Slider
              // value={100}
              maximumValue={40}
              minimumValue={20}
              step={4}
              minimumTrackTintColor={colors.chart.medium}
              maximumTrackTintColor={colors.primary.main}
              thumbTintColor={colors.primary.main}
              // onValueChange={(value: number) =>                                 setSliderValue(value)}
              onValueChange={(value: number) => console.log(value)}
            />

Answer №5

execute commands in Visual Studio Code terminal

cd into ios directory
run pod installation
navigate back to root directory
start React Native for iOS
alternatively, start React Native for Android

Answer №6

I attempted @Californium's solution to halt the Metro Bundler, Simulator, and restart everything, but unfortunately that method did not work for me. I also endeavored to connect Slider, but to no avail.

react-native link @react-native-community/slider

In my experience, it seems that all you need to do is

Import Slider from 'react-native'

This approach resolved the issue for me.

Feel free to try out the suggested steps first, and if they prove unsuccessful, resort to using the slider from react-native directly.

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