android - Unresolved reference BuildConfig

Question

当我尝试重建我的项目时，出现以下错误:

warning: flag is not supported by this version of the compiler: -Xallow-no-source-files
warning: flag is not supported by this version of the compiler: -Xjava-source-roots=/Users/tyln/AndroidStudioProjects/PhoneBox/base/navigation/build/generated/source/buildConfig/dev/debug
base/navigation/src/main/java/com/raqun/phonebox/navigation/IntentLoader.kt:7:9: error: unresolved reference: BuildConfig
        BuildConfig.PACKAGE_NAME,
        ^

> Task :base:navigation:compileDevDebugKotlin FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':base:navigation:compileDevDebugKotlin'.
> Compilation error. See log for more details

当我检查类(class)时，没有 Unresolved 引用。

我正在使用 Gradle 版本 3.3.1

我几乎尝试了一切，例如 Invalidate Cache / Restart, Clean and Rebuild, Close and Reopen project, Reimport project, delete idea folder等，但他们都没有工作。

谢谢你的帮助。

Answer 1

这可能是因为您在添加字段 后尚未构建。 BuildConfig以及 Gradle 文件中声明的其他变量/属性仅在成功构建后可用 .以下说明将解决此问题:

Build -> Clean Project

Build -> Rebuild Project (现在评论任何导致编译器错误的行!)

按Alt + Enter (Windows/Linux) or Option + Enter (macOS)在 BuildConfig在您的代码中并选择 Import...从建议的解决方案。