Attempt to invoke virtual method 'void.com.facebook.react.uimanager.UIManagerModule.onBatchComplete()' on a null object reference

[muzhaqi16]

Description

Attempt to invoke virtual method 'void.com.facebook.react.uimanager.UIManagerModule.onBatchComplete()' on a null object reference

Related to

• Components
• Demo
• Docs
• Typings

Steps to reproduce

Steps to reproduce the behavior:

1. Create a new project with react-native": "^0.76"
2. Setup react-native-ui-lib
3. Add a TextField from react-native-ui-lib
4. See error Attempt to invoke virtual method 'void.com.facebook.react.uimanager.UIManagerModule.onBatchComplete()' on a null object reference

Expected behavior

For the app not to crash

Actual behavior

App crashes

More Info

Code snippet

      <View flex paddingH-25 paddingT-120>
        <Text blue50 text20>
          Welcome
        </Text>
        <TextField text50 placeholder="username" grey10 />
        <TextField text50 placeholder="password" secureTextEntry grey10 />
        <View marginT-100 center>
          <Button text70 white background-orange30 label="Login" />
          <Button link text70 orange30 label="Sign Up" marginT-20 />
        </View>
      </View>

Screenshots/Video

Environment

System:
  OS: Windows 11 10.0.26100
  CPU: (20) x64 12th Gen Intel(R) Core(TM) i9-12900HK
  Memory: 14.56 GB / 31.69 GB
Binaries:
  Node:
    version: 20.18.0
    path: C:\Program Files\nodejs\node.EXE
  Yarn:
    version: 1.22.22
    path: C:\Program Files\nodejs\yarn.CMD
  npm:
    version: 10.8.2
    path: C:\Program Files\nodejs\npm.CMD
  Watchman:
    version: 20241103.093242.0
    path: C:\ProgramData\chocolatey\bin\watchman.EXE
SDKs:
  Android SDK:
    API Levels:
      - "34"
      - "35"
    Build Tools:
      - 34.0.0
      - 35.0.0
    System Images:
      - android-35 | Google Play Intel x86_64 Atom
    Android NDK: Not Found
  Windows SDK:
    AllowDevelopmentWithoutDevLicense: Enabled
IDEs:
  Android Studio: AI-242.23339.11.2421.12550806
  Visual Studio: Not Found
Languages:
  Java:
    version: 17.0.13
    path: /c/Program Files/Microsoft/jdk-17.0.13.11-hotspot/bin/javac
  Ruby: Not Found
npmPackages:
  "@react-native-community/cli":
    installed: 15.0.1
    wanted: 15.0.1
  react:
    installed: 18.3.1
    wanted: 18.3.1
  react-native:
    installed: 0.76.2
    wanted: 0.76.2
  react-native-windows: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: Not found
  newArchEnabled: Not found

• React Native version: "0.76.2"
• React Native UI Lib version: "^7.34.2"
• "react-native-gesture-handler": "^2.21.2",
• "react-native-reanimated": "^3.16.1",

Affected platforms

• Android
• iOS
• Web

[jameskennethrobinson]

Commenting out the following line in RuntimeUtils.java fixes the issue:

ReactContextHolder.getContext().getNativeModule(UIManagerModule.class).onBatchComplete();

Not sure what the long term solution is.

package com.wix.reactnativeuilib.keyboardinput.utils;

import com.facebook.react.uimanager.UIManagerModule;
import com.wix.reactnativeuilib.keyboardinput.ReactContextHolder;

public class RuntimeUtils {

    // TODO Switch to GuardedRunnable when upgrading RN's minimal ver
    private static final Runnable sUIUpdateClosure = new Runnable() {
        @Override
        public void run() {
            ReactContextHolder.getContext().getNativeModule(UIManagerModule.class).onBatchComplete();
        }
    };

    public static void runOnUIThread(Runnable runnable) {
        if (ReactContextHolder.getContext() != null) {
            ReactContextHolder.getContext().runOnUiQueueThread(runnable);
        }
    }

    public static void dispatchUIUpdates(final Runnable userRunnable) {
        runOnUIThread(new Runnable() {
            @Override
            public void run() {
                userRunnable.run();
                if (ReactContextHolder.getContext() != null) {
                    ReactContextHolder.getContext().runOnNativeModulesQueueThread(sUIUpdateClosure);
                }
            }
        });
    }
}

[adids1221]

Hi @muzhaqi16 does it reproduce on project with RN 0.73 ?

[matice2]

still not fixed? 🙁

[JoseAIG]

Waiting for this fix

[AhmedMaqbool]

Having the same error can anybody recommend a fix till they resolve the issue

[adids1221]

@matice2 @JoseAIG @AhmedMaqbool
Does the issue reproduce on RN 0.73?
Currently we are supporting RN 0.73, we will try to check this issue.

[AhmedMaqbool]

@matice2 @JoseAIG @AhmedMaqbool Does the issue reproduce on RN 0.73? Currently we are supporting RN 0.73, we will try to check this issue.

Okay this only works on 0.73 my project is using 0.76 any sort of timeline when you guys will start supporting 0.76

[subhranshuchoudhury]

I am getting the same error kindly fix it. i am only using the Carousel component