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[英]Could not get unknown property 'nav_version' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler
[英]Could not set unknown property 'nav_version' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler
我试图添加导航依赖项以在我的项目中使用导航图,而 android studio 抛出了这个错误。
这是我的项目 Gradle 文件:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.3.50'
repositories {
google()
jcenter()
nav_version = "2.3.0-alpha01" //extra property, used like variables
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.3'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
如您所见,我添加了 $nav_version 依赖项和 nav_version 变量。 但是,android studio 会抛出“无法为 org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler 类型的对象设置未知属性‘nav_version’”错误。 我想知道它是否与 Gradle 版本或我的 Kotlin 版本有关。 我试图清理并重新构建我的项目,但没有用。 我想知道是否有人遇到过类似的事情。
它应该是应用程序级 build.gradle 的一部分。
就像是
dependencies {
def nav_version = "2.3.0-alpha01"
// Kotlin
implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
// Dynamic Feature Module Support
implementation "androidx.navigation:navigation-dynamic-features-fragment:$nav_version"
// Testing Navigation
androidTestImplementation "androidx.navigation:navigation-testing:$nav_version"
}
和顶级/项目级gradle
buildscript {
repositories {
google()
}
dependencies {
def nav_version = "2.3.0-alpha01"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
}
}
或者像 ${nav_version} 一样放置它
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:${nav_version}"
或者
buildScript {
ext {
nav_version = "2.3.0-alpha01"
kotlin_version = "1.3.50"
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.3'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlin_version}"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:${nav_version}"
}
}
参考https://developer.android.com/guide/navigation/navigation-getting-started
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