Cannot determine latest version for kotlin-stdlib on plugin version 0.32.0+

[davidburstromspotify]

Using com.github.ben-manes.versions version 0.35.0 and Gradle 6.7:

Failed to determine the latest version for the following dependencies (use --info for details):
 - org.jetbrains.kotlin:kotlin-stdlib
     1.4.20-RC
The exception that is the cause of unresolved state: org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not find org.jetbrains.kotlin:kotlin-stdlib:.
Required by:
    project :project

This is a regression from 0.31.0, which correctly determines the latest milestone version.

The build script in question uses

dependencies {
  api(platform(project(":platform")))
  implementation(kotlin("stdlib"))
}

and the :platform module defines

dependencies {
  constraints {
    api(kotlin("stdlib"), "1.4.20-RC")
  }
}

[ben-manes]

Can you provide a sample project to debug from? We might need to broaden the stdlib workaround based on your project setup.

Kotlin is a bad citizen wrt how it hacks at Gradle to be incompatible with the standard APIs. This leads to us having to reverse engineer their ad hoc, hard coded behavior so that Gradle can resolve generically. I don't know why they are not following standard idioms and expect others to fix their messes, but it is frustrating.

[davidburstromspotify]

I believe this project should reproduce the issue nicely: gradle-versions-plugin-issue-443.zip

[ben-manes]

It seems to have included a version that is null as the source dependency, causing a resolution failure. Filtering that out did the trick and not a problem for prior kotlin projects bug fixed against.

------------------------------------------------------------
: Project Dependency Updates (report to plain text file)
------------------------------------------------------------

The following dependencies are using the latest milestone version:
 - com.github.ben-manes:gradle-versions-plugin:0.36.0

The following dependencies have later milestone versions:
 - org.jetbrains.kotlin:kotlin-stdlib [1.4.10 -> 1.4.20-RC]
     https://kotlinlang.org/

Gradle release-candidate updates:
 - Gradle: [6.7: UP-TO-DATE]

[davidburstromspotify]

Cool, thank you for resolving the issue so fast!