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所有gms / firebase库必须使用完全相同的版本(混合版本可能导致运行时崩溃) . 版本16.1.1 16.0.1 16.0.0 15.0.1

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尝试在我的项目中实现Firebase,但 implementation 'com.google.firebase:firebase-core:16.0.1' 行标有下划线 . 请 .

谢谢Mbuodile Obiosio,但不工作,我不知道 .

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.harun.basicmathquiz"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.android.support:support-annotations:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.google.firebase:firebase-core:16.0.1'
    implementation 'com.google.firebase:firebase-database:16.0.1'

}

apply plugin: 'com.google.gms.google-services'

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
        classpath 'com.google.gms:google-services:4.0.1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        maven { url "https://maven.google.com" }
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

我的错误:所有gms / firebase库必须使用完全相同的版本规范(混合版本可能导致运行时崩溃) . 找到版本16.1.1,16.0.1,16.0.0,15.0.1 . 示例包括com.google.firebase:firebase-analytics-impl:16.1.1和com.google.firebase:firebase-analytics:16.0.1

3 回答

  • 1

    你正在混合版本,这就是你得到错误的原因 .

    apply plugin: 'com.android.application'
    
        android {
        compileSdkVersion 27
        defaultConfig {
            applicationId "com.example.harun.basicmathquiz"
            minSdkVersion 15
            targetSdkVersion 27
            versionCode 1
            versionName "1.0"
            testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        }
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            }
          }
        }
    
        dependencies {
        implementation fileTree(dir: 'libs', include: ['*.jar'])
        implementation 'com.android.support:appcompat-v7:27.1.1'
        implementation 'com.android.support:support-annotations:27.1.1'
        implementation 'com.android.support:design:27.1.1'
        implementation 'com.android.support.constraint:constraint-layout:1.1.2'
        implementation 'com.google.firebase:firebase-core:16.0.1'
        implementation 'com.google.firebase:firebase-database:16.0.1'    
     }
    
    apply plugin: 'com.google.gms.google-services'
    

    不要忘记使用更新顶级build.gradle文件

    classpath 'com.google.gms:google-services:4.0.1'
    
  • 2

    升级顶级gradle文件中的google-service插件,以避免混合版本错误:

    classpath 'com.google.gms:google-services:4.0.1'
    

    https://bintray.com/android/android-tools/com.google.gms.google-services/

  • 2

    我也遇到了同样的问题 . 我的问题通过在Gradle中添加以下内容来解决

    classpath 'com.google.gms:google-services:4.0.1'
    

    在依赖中

    dependencies {
     .
     .
     .
        implementation ('com.google.firebase:firebase-database:16.0.1') {
            exclude group: "com.google.android.gms"
        }
    }
    apply plugin: 'com.google.gms.google-services'
    

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