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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
我試圖添加導航依賴項以在我的項目中使用導航圖,而 android studio 拋出了這個錯誤。
這是我的項目 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
}
如您所見,我添加了 $nav_version 依賴項和 nav_version 變量。 但是,android studio 會拋出“無法為 org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler 類型的對象設置未知屬性‘nav_version’”錯誤。 我想知道它是否與 Gradle 版本或我的 Kotlin 版本有關。 我試圖清理並重新構建我的項目,但沒有用。 我想知道是否有人遇到過類似的事情。
它應該是應用程序級 build.gradle 的一部分。
就像是
dependencies {
def nav_version = "2.3.0-alpha01"
// Kotlin
implementation "androidx.navigation:navigation-fragment-ktx:$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:$nav_version"
}
和頂級/項目級gradle
buildscript {
repositories {
google()
}
dependencies {
def nav_version = "2.3.0-alpha01"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
}
}
或者像 ${nav_version} 一樣放置它
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:${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}"
}
}
參考https://developer.android.com/guide/navigation/navigation-getting-started
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