android - 无法为类型为 org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler 的对象获取未知属性 'okhttpVersion'

Question

在 build.gradle 文件中添加了以下依赖项，用于在我的新 Kotlin 项目中实现 Retrofit API 调用。

    implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"
    implementation "com.squareup.okhttp3:logging-interceptor:$okhttpVersion"
    implementation ("com.squareup.retrofit2:retrofit:$retrofitVersion"){
        exclude module: 'okhttp'
    }
    implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"

同步后会显示下面提到的错误。

Could not get unknown property 'okhttpVersion' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

工作室指向错误线是，

implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"

请给出任何解决方案。

Answer 1

像这样定义版本值

def okhttpVersion = "3.10.0"
def retrofitVersion = "2.4.0"
implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"
implementation "com.squareup.okhttp3:logging-interceptor:$okhttpVersion"
implementation ("com.squareup.retrofit2:retrofit:$retrofitVersion"){
    exclude module: 'okhttp'
}
implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"

或尝试添加依赖的硬编码版本

implementation "com.squareup.okhttp3:okhttp:3.10.0"
implementation "com.squareup.okhttp3:logging-interceptor:3.10.0"
implementation ("com.squareup.retrofit2:retrofit:2.4.0"){
    exclude module: 'okhttp'
}
implementation "com.squareup.retrofit2:converter-gson:2.4.0"

不要忘记清理和重建...