Install instructions out of date? Android runtime crash: `java.lang.NoClassDefFoundError: Failed resolution of: Lno/fuse/rnunity/RNUnityManager`

I tried adding this library to my app using expo sdk 51 (react-native 0.75.5). I got iOS working pretty quickly but i'm struggling with the android integration. I am *not* using the new architecture. 

After a lot of trial and error, i think i figured out that the instructions for integrating the library and `.aar` files are for an older version of gradle. The newest versions of react-native and expo are currently using gradle 8.8. So I asked ChatGPT to help me figure out the implementation and i was able to cobble together an expo plugin that would compile the app properly, however after metro would bundle the app, i'd get a runtime error and a react-native red screen:

> java.lang.NoClassDefFoundError: Failed resolution of: Lno/fuse/rnunity/RNUnityManager;

<details>
  <summary>Full Stacktrace:</summary>

 ERROR  Your app just crashed. See the error below.
java.lang.NoClassDefFoundError: Failed resolution of: Lno/fuse/rnunity/RNUnityManager;
  no.fuse.rnunity.RNUnityPackage.createViewManagers(RNUnityPackage.java:22)
  com.facebook.react.ReactInstanceManager.getOrCreateViewManagers(ReactInstanceManager.java:933)
  com.swmansion.reanimated.ReanimatedPackage.createUIManager(ReanimatedPackage.java:78)
  com.swmansion.reanimated.ReanimatedPackage.getModule(ReanimatedPackage.java:38)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:156)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:144)
  com.facebook.react.bridge.ModuleHolder.create(ModuleHolder.java:186)
  com.facebook.react.bridge.ModuleHolder.getModule(ModuleHolder.java:151)
  com.facebook.react.bridge.NativeModuleRegistry.getModule(NativeModuleRegistry.java:148)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:469)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:445)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:88)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:46)
  com.facebook.react.ReactInstanceManager.attachRootViewToInstance(ReactInstanceManager.java:1231)
  com.facebook.react.ReactInstanceManager.setupReactContext(ReactInstanceManager.java:1180)
  com.facebook.react.ReactInstanceManager.lambda$runCreateReactContextOnNewThread$1(ReactInstanceManager.java:1143)
  com.facebook.react.ReactInstanceManager.$r8$lambda$FD-H2RG7CdgXPtYJUBikxLbd8MA(Unknown Source:0)
  com.facebook.react.ReactInstanceManager$$ExternalSyntheticLambda4.run(Unknown Source:4)
  android.os.Handler.handleCallback(Handler.java:959)
  android.os.Handler.dispatchMessage(Handler.java:100)
  com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:27)
  android.os.Looper.loopOnce(Looper.java:232)
  android.os.Looper.loop(Looper.java:317)
  com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:233)
  java.lang.Thread.run(Thread.java:1012)
Caused by java.lang.ClassNotFoundException: no.fuse.rnunity.RNUnityManager
  java.lang.VMClassLoader.findLoadedClass(Native Method)
  java.lang.ClassLoader.findLoadedClass(ClassLoader.java:738)
  java.lang.ClassLoader.loadClass(ClassLoader.java:363)
  java.lang.ClassLoader.loadClass(ClassLoader.java:312)
  no.fuse.rnunity.RNUnityPackage.createViewManagers(RNUnityPackage.java:22)
  com.facebook.react.ReactInstanceManager.getOrCreateViewManagers(ReactInstanceManager.java:933)
  com.swmansion.reanimated.ReanimatedPackage.createUIManager(ReanimatedPackage.java:78)
  com.swmansion.reanimated.ReanimatedPackage.getModule(ReanimatedPackage.java:38)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:156)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:144)
  com.facebook.react.bridge.ModuleHolder.create(ModuleHolder.java:186)
  com.facebook.react.bridge.ModuleHolder.getModule(ModuleHolder.java:151)
  com.facebook.react.bridge.NativeModuleRegistry.getModule(NativeModuleRegistry.java:148)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:469)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:445)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:88)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:46)
  com.facebook.react.ReactInstanceManager.attachRootViewToInstance(ReactInstanceManager.java:1231)
  com.facebook.react.ReactInstanceManager.setupReactContext(ReactInstanceManager.java:1180)
  com.facebook.react.ReactInstanceManager.lambda$runCreateReactContextOnNewThread$1(ReactInstanceManager.java:1143)
  com.facebook.react.ReactInstanceManager.$r8$lambda$FD-H2RG7CdgXPtYJUBikxLbd8MA(Unknown Source:0)
  com.facebook.react.ReactInstanceManager$$ExternalSyntheticLambda4.run(Unknown Source:4)
  android.os.Handler.handleCallback(Handler.java:959)
  android.os.Handler.dispatchMessage(Handler.java:100)
  com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:27)
  android.os.Looper.loopOnce(Looper.java:232)
  android.os.Looper.loop(Looper.java:317)
  com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:233)
  java.lang.Thread.run(Thread.java:1012)
Caused by java.lang.NoClassDefFoundError: Failed resolution of: Lcom/unity3d/player/IUnityPlayerLifecycleEvents;
  no.fuse.rnunity.RNUnityPackage.createViewManagers(RNUnityPackage.java:22)
  com.facebook.react.ReactInstanceManager.getOrCreateViewManagers(ReactInstanceManager.java:933)
  com.swmansion.reanimated.ReanimatedPackage.createUIManager(ReanimatedPackage.java:78)
  com.swmansion.reanimated.ReanimatedPackage.getModule(ReanimatedPackage.java:38)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:156)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:144)
  com.facebook.react.bridge.ModuleHolder.create(ModuleHolder.java:186)
  com.facebook.react.bridge.ModuleHolder.getModule(ModuleHolder.java:151)
  com.facebook.react.bridge.NativeModuleRegistry.getModule(NativeModuleRegistry.java:148)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:469)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:445)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:88)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:46)
  com.facebook.react.ReactInstanceManager.attachRootViewToInstance(ReactInstanceManager.java:1231)
  com.facebook.react.ReactInstanceManager.setupReactContext(ReactInstanceManager.java:1180)
  com.facebook.react.ReactInstanceManager.lambda$runCreateReactContextOnNewThread$1(ReactInstanceManager.java:1143)
  com.facebook.react.ReactInstanceManager.$r8$lambda$FD-H2RG7CdgXPtYJUBikxLbd8MA(Unknown Source:0)
  com.facebook.react.ReactInstanceManager$$ExternalSyntheticLambda4.run(Unknown Source:4)
  android.os.Handler.handleCallback(Handler.java:959)
  android.os.Handler.dispatchMessage(Handler.java:100)
  com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:27)
  android.os.Looper.loopOnce(Looper.java:232)
  android.os.Looper.loop(Looper.java:317)
  com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:233)
  java.lang.Thread.run(Thread.java:1012)
Caused by java.lang.ClassNotFoundException: Didn't find class "com.unity3d.player.IUnityPlayerLifecycleEvents" on path: DexPathList[[zip file "/data/app/~~85NQTwgEsIMWF74L2osF1Q==/com.myapp.dev-LW0a1EufLb7G6FArPLCz1g==/base.apk"],nativeLibraryDirectories=[/data/app/~~85NQTwgEsIMWF74L2osF1Q==/com.myapp.dev-LW0a1EufLb7G6FArPLCz1g==/lib/arm64, /data/app/~~85NQTwgEsIMWF74L2osF1Q==/com.myapp.dev-LW0a1EufLb7G6FArPLCz1g==/base.apk!/lib/arm64-v8a, /system/lib64, /system_ext/lib64]]
  dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:259)
  java.lang.ClassLoader.loadClass(ClassLoader.java:379)
  java.lang.ClassLoader.loadClass(ClassLoader.java:312)
  no.fuse.rnunity.RNUnityPackage.createViewManagers(RNUnityPackage.java:22)
  com.facebook.react.ReactInstanceManager.getOrCreateViewManagers(ReactInstanceManager.java:933)
  com.swmansion.reanimated.ReanimatedPackage.createUIManager(ReanimatedPackage.java:78)
  com.swmansion.reanimated.ReanimatedPackage.getModule(ReanimatedPackage.java:38)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:156)
  com.facebook.react.BaseReactPackage$ModuleHolderProvider.get(BaseReactPackage.java:144)
  com.facebook.react.bridge.ModuleHolder.create(ModuleHolder.java:186)
  com.facebook.react.bridge.ModuleHolder.getModule(ModuleHolder.java:151)
  com.facebook.react.bridge.NativeModuleRegistry.getModule(NativeModuleRegistry.java:148)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:469)
  com.facebook.react.bridge.CatalystInstanceImpl.getNativeModule(CatalystInstanceImpl.java:445)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:88)
  com.facebook.react.uimanager.UIManagerHelper.getUIManager(UIManagerHelper.java:46)
  com.facebook.react.ReactInstanceManager.attachRootViewToInstance(ReactInstanceManager.java:1231)
  com.facebook.react.ReactInstanceManager.setupReactContext(ReactInstanceManager.java:1180)
  com.facebook.react.ReactInstanceManager.lambda$runCreateReactContextOnNewThread$1(ReactInstanceManager.java:1143)
  com.facebook.react.ReactInstanceManager.$r8$lambda$FD-H2RG7CdgXPtYJUBikxLbd8MA(Unknown Source:0)
  com.facebook.react.ReactInstanceManager$$ExternalSyntheticLambda4.run(Unknown Source:4)
  android.os.Handler.handleCallback(Handler.java:959)
  android.os.Handler.dispatchMessage(Handler.java:100)
  com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:27)
  android.os.Looper.loopOnce(Looper.java:232)
  android.os.Looper.loop(Looper.java:317)
  com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:233)
  java.lang.Thread.run(Thread.java:1012)
</details>

Any clues or ideas on what might be happening here?

For reference, here is the expo config plugin i used to get the app working in react-native 0.74:

<details>
  <summary>plugins/withUnityLibrary.ts</summary>

```ts
import { AndroidConfig } from "@expo/config-plugins";
import {
  ConfigPlugin,
  withAppBuildGradle,
  withProjectBuildGradle,
  withSettingsGradle,
  withStringsXml,
  withAndroidManifest,
  withGradleProperties,
} from "expo/config-plugins";

const withCustomSettingsGradle: ConfigPlugin = (config) => {
  return withSettingsGradle(config, (config) => {
    if (!config.modResults.contents.includes("unityLibrary")) {
      config.modResults.contents += `
include ':unityLibrary'
project(':unityLibrary').projectDir = new File('../unity/android')
      `;
    }
    return config;
  });
};

const withCustomAppBuildGradle: ConfigPlugin = (config) => {
  return withAppBuildGradle(config, (config) => {
    // Add flatDir repository for Unity .aar files
    if (!config.modResults.contents.includes("../unity/android")) {
      config.modResults.contents = config.modResults.contents.replace(
        /repositories\s*{/,
        `repositories {
    flatDir {
        dirs '../unity/android'
    }`,
      );
    }

    // Ensure the aar file is added to the existing dependencies block
    if (!config.modResults.contents.includes("../unity/android")) {
      config.modResults.contents = config.modResults.contents.replace(
        /dependencies\s*{/,
        `dependencies {
        implementation fileTree(dir: '../unity/android', include: ['*.aar'])
`,
      );
    }

    return config;
  });
};

const withCustomProjectBuildGradle: ConfigPlugin = (config) => {
  return withProjectBuildGradle(config, (config) => {
    // Ensure we modify the existing allprojects block instead of creating a new one
    config.modResults.contents = config.modResults.contents.replace(
      /allprojects\s*{[^}]*repositories\s*{[^}]*}/,
      (match) => {
        if (!match.includes("flatDir")) {
          return match.replace(
            /repositories\s*{/,
            `repositories {
      flatDir {
          dirs '../unity/android'
      }`
          );
        }
        return match; // No changes if flatDir is already present
      }
    );
    return config;
  });
};

const withCustomStringsXml: ConfigPlugin = (config) => {
  return withStringsXml(config, (config) => {
    config.modResults = AndroidConfig.Strings.setStringItem(
      [
        {
          _: "Game view",
          $: {
            name: "game_view_content_description",
          },
        },
        {
          _: "unity_root",
          $: {
            name: "unity_root",
          },
        },
      ],
      config.modResults
    );
    return config;
  });
};

const withCustomAndroidManifest: ConfigPlugin = (config) => {
  return withAndroidManifest(config, (config) => {
    const app = AndroidConfig.Manifest.getMainApplicationOrThrow(config.modResults);

    // Ensure android:extractNativeLibs is set to true in the <application> tag
    app.$['android:extractNativeLibs'] = 'true';

    // Find the MainActivity entry or add it if missing
    let mainActivity = AndroidConfig.Manifest.getMainActivity(config.modResults);
    if (!mainActivity) {
      mainActivity = {
        $: {
          'android:name': '.MainActivity',
        },
        'intent-filter': [],
      };
      app['activity'] = app['activity'] || [];
      app['activity'].push(mainActivity);
    }

    mainActivity.$['android:hardwareAccelerated'] = 'true';

    return config;
  });
};

const withCustomGradleProperties: ConfigPlugin = (config) => {
  return withGradleProperties(config, (config) => {
    const unityStreamingAssets = { key: 'unityStreamingAssets', value: '.unity3d' };

    const existingProperty = config.modResults.find((item) => item.key === unityStreamingAssets.key);
    if (!existingProperty) {
      config.modResults.push(unityStreamingAssets);
    }
    return config;
  });
};

// Main plugin function
export const withUnityLibrary: ConfigPlugin = (config) => {
  config = withCustomSettingsGradle(config);
  config = withCustomAppBuildGradle(config);
  config = withCustomProjectBuildGradle(config);
  config = withCustomStringsXml(config);
  config = withCustomAndroidManifest(config);
  config = withCustomGradleProperties(config);
  return config;
};
```
</details>

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Install instructions out of date? Android runtime crash: `java.lang.NoClassDefFoundError: Failed resolution of: Lno/fuse/rnunity/RNUnityManager` #40

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Install instructions out of date? Android runtime crash: java.lang.NoClassDefFoundError: Failed resolution of: Lno/fuse/rnunity/RNUnityManager #40

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Install instructions out of date? Android runtime crash: `java.lang.NoClassDefFoundError: Failed resolution of: Lno/fuse/rnunity/RNUnityManager` #40