未解决的参考:JavaVersion.VERSION_1_8 [英] Unresolved reference: JavaVersion.VERSION_1_8

问题描述

如何解决以下错误?

android {
    ...
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    ...
}

Android Studio->文件->项目结构->模块-> 未解决的参考:JavaVersion.VERSION_1_8

Android Studio --> File --> Project Structure --> Modules --> Unresolved reference: JavaVersion.VERSION_1_8

推荐答案

我在根build.gradle的buildscript部分中添加了ext.java_version变量

I added to the buildscript section of the root build.gradle the ext.java_version variable

buildscript {
    ...
    ext.java_version = JavaVersion.VERSION_1_8
    ...
}

，然后将模块的build.gradle JavaVersion.VERSION_1_8更改为java_version

and changed in the module's build.gradle JavaVersion.VERSION_1_8 to java_version

android {
    ...
    compileOptions {
        sourceCompatibility java_version
        targetCompatibility java_version
    }
    ...
}

现在一切正常.

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