以下是android/build.gradle归档了两个不同项目的内容.

PROJECT 1

    ext {
        buildToolsVersion = "29.0.3"
        minSdkVersion = 21
        compileSdkVersion = 29
        targetSdkVersion = 30
        supportLibVersion = "29.0.0"
        googlePlayServicesVersion = "16.0.0"
        firebaseVersion = "17.3.4"
        firebaseMessagingVersion = "20.2.1"
        firebaseBomVersion="20.2.1"
    }
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath("com.android.tools.build:gradle:4.0.1")
        classpath ("com.google.gms:google-services:4.2.0")
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenLocal()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url("$rootDir/../node_modules/react-native/android")
        }
        maven {
            // Android JSC is installed from npm
            url("$rootDir/../node_modules/jsc-android/dist")
        }

        google()
        jcenter()
        maven { url 'https://jitpack.io' }
    }
}

PROJECT 2

buildscript {
    ext {
        kotlin_version = '1.5.0'
        buildToolsVersion = "29.0.2"
        minSdkVersion = 24
        compileSdkVersion = 29
        targetSdkVersion = 29
        androidXCore = "1.7.0"
        googlePlayServicesAuthVersion = "16.0.1"
    }
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath("com.android.tools.build:gradle:3.5.4")
        classpath 'com.google.gms:google-services:4.3.10'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenLocal()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url("$rootDir/../node_modules/react-native/android")
        }
        maven {
            // Android JSC is installed from npm
            url("$rootDir/../node_modules/jsc-android/dist")
        }

        google()
        jcenter()
        maven { url 'https://www.jitpack.io' }
    }
}

当我执行:react native android时,我得到以下错误.

PROJECT 1

* What went wrong:
Could not determine the dependencies of task ':app:mergeDebugAssets'.
> Could not resolve all task dependencies for configuration ':app:debugRuntimeClasspath'.
   > Could not resolve com.facebook.android:facebook-login:[5,6).
     Required by:
         project :app
      > Failed to list versions for com.facebook.android:facebook-login.
         > Unable to load Maven meta-data from https://jcenter.bintray.com/com/facebook/android/facebook-login/maven-metadata.xml.
            > Could not HEAD 'https://jcenter.bintray.com/com/facebook/android/facebook-login/maven-metadata.xml'.
               > org.apache.http.client.ClientProtocolException (no error message)

PROJECT 2

* What went wrong:
Could not determine the dependencies of task ':app:mergeDebugAssets'.
> Could not resolve all task dependencies for configuration ':app:debugRuntimeClasspath'.
   > Could not resolve com.facebook.android:facebook-login:[8.1).
     Required by:
         project :app
      > Could not resolve com.facebook.android:facebook-login:[8.1).
         > Could not get resource 'https://jcenter.bintray.com/com/facebook/android/facebook-login/%5B8.1)/facebook-login-%5B8.1).pom'.
            > Could not GET 'https://jcenter.bintray.com/com/facebook/android/facebook-login/%5B8.1)/facebook-login-%5B8.1).pom'.
               > org.apache.http.client.ClientProtocolException (no error message)
   > Could not resolve com.facebook.android:facebook-android-sdk:9.0.
     Required by:
         project :app
      > Could not resolve com.facebook.android:facebook-android-sdk:9.0.
         > Could not get resource 'https://jcenter.bintray.com/com/facebook/android/facebook-android-sdk/9.0/facebook-android-sdk-9.0.pom'.
            > Could not GET 'https://jcenter.bintray.com/com/facebook/android/facebook-android-sdk/9.0/facebook-android-sdk-9.0.pom'.
               > org.apache.http.client.ClientProtocolException (no error message)
   > Could not resolve com.facebook.android:facebook-android-sdk:9.0.+.
     Required by:
         project :app > project :react-native-fbsdk-next
      > Failed to list versions for com.facebook.android:facebook-android-sdk.
         > Unable to load Maven meta-data from https://jcenter.bintray.com/com/facebook/android/facebook-android-sdk/maven-metadata.xml.
            > Could not HEAD 'https://jcenter.bintray.com/com/facebook/android/facebook-android-sdk/maven-metadata.xml'.

请注意,我判断了以下解决方案,但都不起作用

推荐答案

你的一些android依赖项似乎在Jcenter存储库中.

不幸的是,Jcenter是currently down.

你现在有两个 Select :

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