Spring boot + kotlin runApplication<MyApplication>(*args) can not start

Question

import org.springframework.boot.runApplication
import org.springframework.boot.SpringApplication

@SpringBootApplication
open  class MyApplication

fun main(args: Array<String>) {
    runApplication<MyApplication>(*args)
}

Error: unable to find or unable to load the main class

Why can't that run, but this can?

import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.SpringApplication

@SpringBootApplication
open class MyApplication

fun main(args: Array<String>) {
    SpringApplication.run(MyApplication::class.java, *args)
}

pwolaq · Accepted Answer · 2018-02-06 13:38:22Z

1

You are missing following import in your Kotlin code:

import org.springframework.boot.autoconfigure.SpringBootApplication

Adding it should fix the problem.

On the other hand, this import is not necessary:

import org.springframework.boot.SpringApplication

answered Feb 6, 2018 at 13:38

pwolaq

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