React Native android 构建：错误：重复类：com.facebook.react.PackageList

Question

在尝试为 Android 构建我的 React Native 应用程序 (0.72.17) 时，出现错误：“重复的类：com.facebook.react.PackageList”。 这个类确实可以在两个位置找到：

/android/app/build/generated/rncli/src/main/java/com/facebook/react/PackageList.java

和

/android/app/build/generated/autolinking/src/main/java/com/facebook/react/PackageList.java

所以它位于“autolinking”文件夹和“rncli”文件夹中。

该错误消息并没有说明我上面发布的内容，因此没有太大帮助。

这是我的

android/app/build.gradle

文件：

apply plugin: "com.facebook.react"

/**
* This is the configuration block to customize your React Native Android app.
 * By default you don't need to apply any configuration, just uncomment the lines you need.
 */

react {
    /* Only comments here */ 
}
/**
 * Set this to true to Run Proguard on Release builds to minify the Java bytecode.
 */
def enableProguardInReleaseBuilds = false

/**
 * The preferred build flavor of JavaScriptCore (JSC)
 *
 * For example, to use the international variant, you can use:
 * `def jscFlavor = 'org.webkit:android-jsc-intl:+'`
 *
 * The international variant includes ICU i18n library and necessary data
 * allowing to use e.g. `Date.toLocaleString` and `String.localeCompare` that
 * give correct results when using with locales other than en-US. Note that
 * this variant is about 6MiB larger per architecture than default.
 */
def jscFlavor = 'org.webkit:android-jsc:+'

android {
    ndkVersion rootProject.ext.ndkVersion

    compileSdkVersion rootProject.ext.compileSdkVersion

    namespace "com.hallonewyorkrn"
    defaultConfig {
        applicationId "com.hallonewyorkrn"
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion
        versionCode 12
        versionName "1.0.3"
    }
    signingConfigs {
            debug {
                storeFile file('debug.keystore')
                storePassword 'android'
                keyAlias 'androiddebugkey'
                keyPassword 'android'
            }
            release {
                if (project.hasProperty('ENV_VAR')) {
                    storeFile file(ENV_VAR_FILE)
                    storePassword ENV_VAR_PASS
                    keyAlias ENV_VAR_ALIAS
                    keyPassword ENV_VAR_KEY_PASSWORD
                }
            }
    }
    buildTypes {
        debug {
            signingConfig signingConfigs.debug
        }
        release {
            // Caution! In production, you need to generate your own keystore file.
            // see https://reactnative.dev/docs/signed-apk-android.
            minifyEnabled enableProguardInReleaseBuilds
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
            signingConfig signingConfigs.release
        }
    }

    packagingOptions {
        jniLibs {
            pickFirsts += ['lib/x86/libc++_shared.so', 'lib/x86_64/libjsc.so', 'lib/arm64-v8a/libjsc.so', 'lib/arm64-v8a/libc++_shared.so', 'lib/x86_64/libc++_shared.so', 'lib/armeabi-v7a/libc++_shared.so']
        }
    }
    
}

dependencies {
    // The version of react-native is set by the React Native Gradle Plugin
    implementation("com.facebook.react:react-android")
    
    debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}")
    debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
        exclude group:'com.squareup.okhttp3', module:'okhttp'
    }

    debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}")
    if (hermesEnabled.toBoolean()) {
        implementation("com.facebook.react:hermes-android")
    } else {
        implementation jscFlavor
    }

    implementation "androidx.appcompat:appcompat:1.7.0"
    implementation project(':react-native-video')
    implementation project(':react-native-fs')
    implementation project(':react-native-inappbrowser-reborn')
}
apply from: "../../node_modules/react-native-vector-image/strip_svgs.gradle"

apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
``

Answer 1

如果您还没有在 android 文件夹中编写任何本机代码，我建议尝试 删除android文件夹并运行

npx expo prebuild

这应该会带回 android 和 ios 文件夹，然后尝试再次运行该应用程序。

使用此博览会链接作为参考