Issue running with Expo app

[stanleylws]

I managed to run the example app on android emulator by following the instructions on README.md. However I'm having issue adding it into my Expo app.

1. When I run with npx expo start and opening it on Android emulator, I get the below error when the page loads:

ERROR  [Invariant Violation: TurboModuleRegistry.getEnforcing(...): 'Worklets' could not be found. Verify that a module by this name is registered in the native binary.]

2. Then I tried with a local build by running npx expo run:android, but failed to build with the below error:

FAILURE: Build failed with an exception.

* What went wrong:
> Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Could not resolve all dependencies for configuration ':app:debugCompileClasspath'.
   > Could not find com.migeran.libgodot:godot-debug:4.5.1.migeran.2-SNAPSHOT.
     Required by:
         project :app > project :borndotcom_react-native-godot

I did run download-prebuilt and verified that the following are present:

• node_modules/@borndotcom/react-native-godot/android/libs/libgodot-android
• node_modules/@borndotcom/react-native-godot/android/libs/libgodot-cpp-android

What did I miss here?

[vikramadityaiwnl]

i am also getting the same issue

[vikramadityaiwnl]

// app.json

{
    "expo": {
        "plugins": {
            [
                "expo-build-properties",
                {
                    "android": {
                        "minSdkVersion": 29,
                        "extraMavenRepos": [
                            "file:../../node_modules/@borndotcom/react-native-godot/android/libs/libgodot-android/4.5.1.migeran.2",
                            "file:../../node_modules/@borndotcom/react-native-godot/android/libs/libgodot-cpp-android/4.5.1.migeran.2"
                        ]
                    }
                }
            ]
        }
    }
}

I was able to get past the build error but when i run the app it crashes on Android.

I am not really sure if this is the right way to fix the issue. Please correct me if I am wrong.

Also i'll attach my logs from Android Studio.
logs.txt

For iOS, the app builds and runs without any issues

[mckenytech]

{
  "expo": {
    "plugins": [
      [
        "expo-build-properties",
        {
          "android": {
            "minSdkVersion": 29,
            "extraMavenRepos": [
              "file:../node_modules/@borndotcom/react-native-godot/android/m2repository"
            ]
          }
        }
      ]
    ]
  }
}

make sure to run npx expo prebuild --clean then build again..

[vikramadityaiwnl]

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Could not resolve all dependencies for configuration ':app:debugCompileClasspath'.
   > Could not find com.migeran.libgodot:godot-debug:4.5.1.migeran.2-SNAPSHOT.
     Required by:
         project :app > project :borndotcom_react-native-godot

i am getting this build error.

[shreyastaware]

Sonnet 4.5 says Expo integration is not available for React Native Godot yet

[kisg]

It works fine, on Android you might need to add this to app/build.gradle:

def getPrebuiltLibraryVersion(libName) {
    // package.json resides at the repository root (one level up from android/)
    def packageFile = file("$rootDir/../node_modules/@borndotcom/react-native-godot/package.json")
    if (!packageFile.exists()) {
        throw new GradleException("Unable to locate package.json at ${packageFile}")
    }

    def json = new JsonSlurper().parse(packageFile)

    def entry = json.prebuiltFiles?.find { it.name == libName }

    if (!entry) {
        throw new GradleException("Prebuilt entry not found for library '${libName}'. Ensure it exists in package.json.")
    }

    return entry.version
}

def libGodotVersion = getPrebuiltLibraryVersion("libgodot-android")
def libGodotMavenUrl = uri("$rootDir/../node_modules/@borndotcom/react-native-godot/android/libs/libgodot-android/$libGodotVersion")

repositories {
    google()
    mavenCentral()
    mavenLocal()
    maven {
        // @borndotcom is installed from npm
        url = "$libGodotMavenUrl"
    }
}

[swalih-mohammed]

this does not solve the problem - expo eas android build fails with below error

• What went wrong:
  Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.

Could not resolve all dependencies for configuration ':app:debugCompileClasspath'.
Could not resolve com.migeran.libgodot:godot-debug:4.5.1.migeran.2-SNAPSHOT.
Required by:
project :app > project :borndotcom_react-native-godot
>
Could not resolve com.migeran.libgodot:godot-debug:4.5.1.migeran.2-SNAPSHOT.
> Unable to load Maven meta-data from https://maven.migeran.com/com/migeran/libgodot/godot-debug/4.5.1.migeran.2-SNAPSHOT/maven-metadata.xml.
> Could not GET 'https://maven.migeran.com/com/migeran/libgodot/godot-debug/4.5.1.migeran.2-SNAPSHOT/maven-metadata.xml'.
> maven.migeran.com

could any one help please

[vikramadityaiwnl]

create plugins/withGodot.js and paste the following code

const {
  withMainActivity,
  withProjectBuildGradle,
} = require("expo/config-plugins");

/**
 * Plugin that handles both MainActivity.kt patching and Maven repository configuration
 * for React Native Godot integration.
 *
 * This plugin:
 * 1. Patches MainActivity.kt to add React Native Godot initialization
 * 2. Adds a local Maven repo for LibGodot to android/build.gradle
 */
const withGodot = (config) => {
  config = withProjectBuildGradle(config, (config) => {
    const modResults = config.modResults;

    if (modResults.language !== "groovy") {
      return config;
    }

    let contents = modResults.contents;

    if (
      contents.includes(
        "@borndotcom/react-native-godot/android/libs/libgodot-android"
      )
    ) {
      return config;
    }

    const mavenBlock = `
        maven {
            url uri("$rootDir/../node_modules/@borndotcom/react-native-godot/android/libs/libgodot-android/4.5.1.migeran.2")
        }`;

    const pattern = /allprojects\s*\{\s*repositories\s*\{/;

    if (pattern.test(contents)) {
      contents = contents.replace(pattern, (match) => match + mavenBlock);
    } else {
      contents += `allprojects { repositories {${mavenBlock} } }`;
    }

    modResults.contents = contents;
    return config;
  });

  config = withMainActivity(config, (config) => {
    const mainActivity = config.modResults;

    if (!mainActivity.language) {
      return config;
    }

    let contents = mainActivity.contents;

    const onCreatePattern = /(\s*)super\.onCreate\(null\)/;
    const godotInitializationCode = `
    // Initialize Godot
    try {
      System.loadLibrary("rtngodot")
      com.rtngodot.RTNLibGodot.getInstance().init(this)
    } catch (e: Exception) {
      android.util.Log.e("MainActivity", "Failed to initialize Godot", e)
    }`;

    if (onCreatePattern.test(contents)) {
      contents = contents.replace(onCreatePattern, (match, indent) => {
        return `${indent}super.onCreate(null)${godotInitializationCode}`;
      });
    } else {
      const splashScreenPattern =
        /SplashScreenManager\.registerOnActivity\(this\)/;
      if (splashScreenPattern.test(contents)) {
        contents = contents.replace(splashScreenPattern, (match) => {
          return `${match}${godotInitializationCode}`;
        });
      }
    }

    mainActivity.contents = contents;
    return config;
  });

  return config;
};

module.exports = withGodot;

use that plugin in app.json

"plugins": [
  [
    "expo-build-properties": {
      "android": {
        "minSdkVersion": 29
      }
    }
  ],
  "./plugins/withGodot.js"
]

also make sure setimmediate is installed, because i missed that. not having setimmediate can cause the app to crash. import it where you initialize godot.

also when building the app with EAS, you need to add arch types in android build properties

"plugins": [
  [
    "expo-build-properties": {
      "android": {
        "buildArchs": ["armeabi-v7a", "arm64-v8a"]
      }
    }
  ],
]

[swalih-mohammed]

android implimentation is still not clear