Sounds like you've probably got the wrong version ...

# compose

[jim]

Sounds like you've probably got the wrong version specified. Make sure you build.gradle is using Kotlin 1.3.70 and compose compiler options like:

composeOptions {
        kotlinCompilerVersion "1.3.70-dev-withExperimentalGoogleExtensions-20200424"
        kotlinCompilerExtensionVersion "0.1.0-dev13"
    }