Trying to update to Kotlin 1.4.0 and matching libr...

# multiplatform

[tylerwilson]

Trying to update to Kotlin 1.4.0 and matching libraries. Getting this when doing a gradle sync:

> org.jetbrains.kotlin.gradle.plugin.KotlinGradleSubplugin: Provider org.jetbrains.kotlinx.serialization.gradle.SerializationGradleSubplugin not a subtype

I changed serialization-runtime to serialization-core. Anybody else getting this?