无法解决:com.google.firebase:firebase-core:16.0.1 [英] Failed to resolve: com.google.firebase:firebase-core:16.0.1
问题描述
我正在尝试将Firebase云存储添加到我的应用中.以下是应用程序build.gradle.但它说: 无法解决:com.google.firebase:firebase-core:16.0.1. 为什么?依赖项中根本没有firebase-core.
I'm trying to add firebase cloud storage to my app. Below is the app build.gradle. But it says: Failed to resolve: com.google.firebase:firebase-core:16.0.1. Why? There is no firebase-core in the dependencies at all.
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.louise.udacity.mydict"
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:1.1.0'
implementation 'com.google.firebase:firebase-storage:16.0.1'
implementation 'com.google.firebase:firebase-auth:16.0.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.google.cloud:google-cloud-storage:1.31.0'
implementation 'com.firebase:firebase-jobdispatcher:0.8.5'
}
apply plugin: 'com.google.gms.google-services'
推荐答案
来自文档:-
您的应用gradle文件现在必须明确列出
com.google.firebase:firebase-core
作为Firebase服务按预期工作的依赖项.
Your app gradle file now has to explicitly list
com.google.firebase:firebase-core
as a dependency for Firebase services to work as expected.
添加:
implementation 'com.google.firebase:firebase-core:16.0.1'
并在顶级gradle文件中使用最新版本的Google Play服务:
and in top level gradle file use the latest version of google play services:
classpath 'com.google.gms:google-services:4.0.2'
https://firebase.google.com/support/release-notes/android
https://bintray.com/android/android- tools/com.google.gms.google-services
注意:
您需要按照Firebase文档中的指定,在顶级gradle文件中添加google()
仓库,并且该仓库也应位于jcenter()
之前:
You need to add the google()
repo in the top level gradle file, as specified in the firebase docs and also it should be before jcenter()
:
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.3'
classpath 'com.google.gms:google-services:4.0.2'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
https://firebase.google.com/docs/android/setup
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