无法在安卓中安装导航

Question

我正在尝试在架构组件中安装最新版本的导航。 我正在关注此文档教程链接

当我尝试同步时，它给出错误.

Could not find androidx.navigation:safe-args-gradle-plugin:1.0.0-alpha01.
Searched in the following locations:
https://dl.google.com/dl/android/maven2/androidx/navigation/safe-args-gradle-plugin/1.0.0-alpha01/safe-args-gradle-plugin-1.0.0-alpha01.pom
https://dl.google.com/dl/android/maven2/androidx/navigation/safe-args-gradle-plugin/1.0.0-alpha01/safe-args-gradle-plugin-1.0.0-alpha01.jar
https://jcenter.bintray.com/androidx/navigation/safe-args-gradle-plugin/1.0.0-alpha01/safe-args-gradle-plugin-1.0.0-alpha01.pom
https://jcenter.bintray.com/androidx/navigation/safe-args-gradle-plugin/1.0.0-alpha01/safe-args-gradle-plugin-1.0.0-alpha01.jar
Required by:
project :

模块格拉德尔

apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.ard.navigationapp"
minSdkVersion 19
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'
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'

def nav_version = "1.0.0-alpha01"
implementation 'android.arch.navigation:navigation-fragment:$nav_version' // use -ktx for Kotlin
implementation 'android.arch.navigation:navigation-ui:$nav_version' // use -ktx for Kotlin
// optional - Test helpers
androidTestImplementation 'android.arch.navigation:navigation-testing:$nav_version' // use -ktx for Kotlin
}
apply plugin: 'androidx.navigation.safeargs'

格拉德尔项目

// 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 "androidx.navigation:safe-args-gradle-plugin:1.0.0-alph
a01"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Answer 1

根据现在 https://maven.google.com 的内容，该工件似乎不存在。请尝试android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0-alpha01。另请参阅此问题。

Answer 2

尝试添加

classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0-alpha01"

而不是

classpath "androidx.navigation:safe-args-gradle-plugin:1.0.0-alpha01"

如果你不关心参数的类型安全，你可以跳过安全参数部分，你会很高兴使用导航组件。