Android Studio 3 + Gradle 4.0 + shrinkResources + libraryProject = Unable to find a matching configuration in project

Question

I\'ve problems to migrate my project to the newest Gradle 4.0 + Android Studio 3 version, which gives me all kind of errors. Little by little I managed to sort them all out

Answer 1

IF your app includes a build type that a library dependency does not.

For example, your app includes a "staging" build type, but a dependency includes only a "debug" and "release" build type.

You will get error like

Unable to resolve dependency for ':app@staging/compileClasspath': Could not resolve project :library. Open File Show Details

You can resolve this error by adding

buildTypes {
        staging {
            proguardFile getDefaultDexGuardFile('dexguard-release.pro')
            proguardFile 'dexguard-rules.pro'
            matchingFallbacks = ['debug', 'release'] //add this line
        }
    }

Resolve build errors related to dependency matching official docs