Trouble using centralized dependency versions in buildSrc plugins and buildscript classpath

[henrik242]

The new centralized dependency versions feature preview in Gradle 7 is pretty great, but there are a couple of places where libs doesn't resolve.

1. In plugins in buildSrc, e.g. buildSrc/src/main/kotlin/MyPlugin.kt:

   class MyPlugin : Plugin<Project> {
   
       override fun apply(project: Project): Unit = project.run {
   
           dependencies {
               implementation(libs.groovy)
               testImplementation(libs.junit)
               [...]
           }
           [...]
       }
   }
   

   The error I get ise: .../buildSrc/src/main/kotlin/MyPlugin.kt: (21, 32): Unresolved reference: libs

2. In dependencies/classpath in the root build.gradle.kts:

   buildscript {
       [...]
       dependencies {
           classpath(libs.gradleVersionsPlugin)
           [...]
       }
   }
   

   Error is Script compilation error: Line 27: classpath(libs.gradleVersionsPlugin) Unresolved reference: libs

3. In the root settings.gradle.kts:

   plugins {
       id("com.gradle.enterprise").version(libs.versions.gradleEnterprise.get())
   }
   

   Throws approximately the same error as in pt. 2.

4. In the plugins block in buildSrc/build.gradle.kts:

   plugins {
       id("org.jmailen.kotlinter").version(libs.versions.kotlinter.get())
   }
   

   Throws approximately the same error as in pt. 2.

Is there a way to solve any of these?

SEO: enableFeaturePreview("VERSION_CATALOGS")

[melix]

There are multiple issues here, it's better to create separate issues for each. However I don't think there's an immediate action to be taken. A follow-up for plugins (4) will be implemented. Please refer to my explanation on the forums: https://discuss.gradle.org/t/trouble-using-centralized-dependency-versions-in-buildsrc-plugins-and-buildscript-classpath/39421/2?u=cedricchampeau