unresolved reference BuildConfig

Question

When i'm try to rebuild my project i get the error below:

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

When I check the class there're no unresolved references.

I'm using Gradle Version 3.3.1

I almost tried everything such as Invalidate Cache / Restart, Clean and Rebuild, Close and Reopen project, Reimport project, delete idea folder etc but none of them worked.

Thanks for your help.

Answer 1

It's probably because you have not made a build since adding the field, BuildConfig and other variables/properties declared in a Gradle file will only be available AFTER a successful build. The following instructions will fix this:

• Build -> Clean Project
• Build -> Rebuild Project (comment any lines that cause compiler errors for now!)
• Press Alt + Enter (Windows/Linux) or Option + Enter (macOS) on BuildConfig in your code and select Import... from suggested solutions.