I keep getting "This class can only be used with the compiler argument '-opt-in=kotlin.RequiresOptIn...

# compose

[Colton Idle]

I keep getting "This class can only be used with the compiler argument '-opt-in=kotlin.RequiresOptIn'" when building. I see that this can be fixed with

tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
  kotlinOptions {
    freeCompilerArgs += "-Xopt-in=kotlin.RequiresOptIn"
  }
}

which I added to my root build.gradle, but I still get the warning. Should I just not care or should I just remove it completely?

[Thomas]

-opt-in vs -Xopt-in, look at the error message

[Thomas]

Think it changed in 1.6

[Albert Chang]

If you are adding that to your root project, I think you need to put it in a subprojects { } block.

[Colton Idle]

That did the trick. thank you!