Can't configure kotlinOptions after upgrade to gradle 5.6.3 using kotlin-dsl

[b95505017]

  Line 172:         jvmTarget = "1.8"
                    ^ Unresolved reference: jvmTarget

  Line 173:         freeCompilerArgs = freeCompilerArgs + listOf(
                    ^ Unresolved reference: freeCompilerArgs

  Line 173:         freeCompilerArgs = freeCompilerArgs + listOf(
                                       ^ Unresolved reference: freeCompilerArgs

[eskatos]

Thanks for the report @b95505017
It's impossible to tell what is happening without knowing what's above this "Line 172".
Could you please tell us a bit more, sharing a reproducer would be ideal.

[robinlinden]

I run into the same issue after updating to 5.6.3 (https://github.com/robinlinden/aTox/tree/gradle-5.6.3):

FAILURE: Build failed with an exception.

* Where:
Build file 'D:\Projects\aTox\app\build.gradle.kts' line: 33

* What went wrong:
Script compilation errors:

  Line 33:         jvmTarget = Java.version.toString()
                   ^ Unresolved reference: jvmTarget

  Line 34:         freeCompilerArgs = listOf("-XXLanguage:+InlineClasses")
                   ^ Unresolved reference: freeCompilerArgs

2 errors

https://github.com/robinlinden/aTox/blob/c47d912be488c1e5ef7c76d2e740953231702eec/app/build.gradle.kts#L12-L35

Just running a gradlew build should be enough to reproduce it and it fails on Travis with the same error: https://travis-ci.org/robinlinden/aTox/builds/600319992#L1161

[eskatos]

Thanks @robinlinden, the reproducer helped.

With Gradle 5.6.2, android.kotlinOptions {} is a generated accessor for the kotlinOptions extension of type org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions on the android extension.

With Gradle 5.6.3, that same accessor is typed Any.

[eskatos]

You can work around that by using the API instead of the generated accessor:

android {
    (this as ExtensionAware).configure<KotlinJvmOptions> {
        jvmTarget = "1.8"
    }
}

or by using the more dynamic Groovy builder:

android {
    withGroovyBuilder {
        "kotlinOptions" {
            setProperty("jvmTarget", "1.8")
        }
    }
}

[b95505017]

@eskatos Will future version change back?