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How do I specify a Kotlin function as the `mainClassName` in the `springBoot` section of the build.gradle.kts? (The rest of the details in the thread)

First, I'm using Windows. :disappointed: I'm also using the setup in the Spring Boot Kotlin tutorial (<https://spring.io/guides/tutorials/spring-boot-kotlin/>). I ran into a bunch of issues when the classpath/filename became too large.

My Application looks exactly like this (but different names of course)
```package <http://com.example.blog|com.example.blog>

import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication

@SpringBootApplication
class BlogApplication

fun main(args: Array&lt;String&gt;) {
  runApplication&lt;BlogApplication&gt;(*args)
}```
This used to work fine. However, because of the Windows issue, I needed to use the `id("com.github.ManifestClasspath") version "0.1.0-RELEASE"` plugin. In doing that, I got this ` Main class name has not been configured and it could not be resolved`.

I'm fairly certain I need to use:
```springBoot {
    mainClassName = ""
}```
However, since the main is a Kotlin function, how do I specify that here?

```mainClassName = "com.example.my.ApplicationKt"```
That Kt part is necessary so it will be whatever your class name is + ‘Kt’

Well, I got further than I did before anyway. :slightly_smiling_face:

It _might_ be an application error (i.e., I caused it). Still investigating.

Yup, just something on my side. Fix it. It all works. Thanks again!