how to apply a plugin written in kotlin class to kts script on gradle

gradle multi-project.

Sample

1. apply kotlin class plugin to kotlin class pluginIt's ok.

2. apply kts(script) plugin to kts(script) pluginIt's ok

3. apply kts (script) plugin to kcp(class) pluginIt's ok.

4. apply kcp(class) plugin to kts(script) plugin

• error.

If you apply a plugin made of Kotlin class in the kts plugin, an error occurs saying that the plugin cannot be found.

Why doesn't it work in this case?

I can't found solution.