无法在Eclipse中运行Kotlin应用程序 [英] Unable to Run Kotlin Application in Eclipse

问题描述

为了在Eclipse中创建我的第一个简单的Kotlin项目，我遵循了

In order to create my first, simple Kotlin project in Eclipse, I followed the steps in Getting Started with Eclipse Luna tutorial from Kotlin official website, i.e.:

• 从Eclipse Marketplace安装Eclipse的Kotlin插件
• 打开Kotlin透视图并创建Kotlin项目
• 使用main方法在"src"文件夹中创建文件"hello.kt"
• 右键单击文件>运行方式> Kotlin应用程序

• Install Kotlin Plugin for Eclipse from Eclipse Marketplace
• Open the Kotlin perspective and created a Kotlin Project
• Created the file "hello.kt" inside the "src" folder with the main method
• Right-clicked the file > Run As > Kotlin Application

但是，我始终在Eclipse控制台中收到以下错误:

However, I keep get the following error in Eclipse console:

错误:找不到或加载主类HelloKt

Error: Could not find or load main class HelloKt

我已经为我的项目仔细检查了运行配置，并且确实将"Main class"设置为HelloKt(我100％确信它不存在).另外，当我按下搜索"按钮时，Eclipse唯一找到的项目是HelloKt - (default package)(同样，它不存在).

I have double-checked the Run Configuration for my project, and it does set the "Main class" as HelloKt (which I'm 100% sure it does not exist). Also, when I hit the "Search" button, the only item that Eclipse finds is HelloKt - (default package) (which, again, does not exist).

为完整起见，请在下面找到hello.kt文件的代码:

For the sake of completeness, find below the code for hello.kt file:

fun main(args: Array<String>) {
    println("Hello, World")
}

我注意到本教程与所做的工作之间存在以下差异:

I noticed the following divergences between the tutorial and what I did:

• 我正在使用其他Eclipse版本(本教程建议使用Luna；我正在使用Mars.2).
• 我使用的是其他JDK版本(本教程没有建议任何特定版本，但是从图像中我们可以看到它们使用了jdk1.6.0_45，而我使用的是jdk1.7.0_79.

• I'm using a different Eclipse version (the tutorial suggests Luna; I'm using Mars.2).
• I'm using a different JDK version (the tutorial DOES not suggest any specific version, but from the images, we can see they have used jdk1.6.0_45, while I'm using jdk1.7.0_79.

请注意，我使用的是最新版本的Kotlin Eclipse插件，因此与这篇文章.这些是我当前安装中的版本:

Note that I'm using the latest version of Kotlin Eclipse Plugin, so this is not the same case as in this post. These are the versions in my current installation:

• 科特林0.7.2.v20160930-0748
  • kotlin-eclipse-policy 0.7.2.v20160928-1525
  • kotlin-weaving-feature 0.7.2.v20160928-1525
  • Kotlin 0.7.2.v20160930-0748
    • kotlin-eclipse-policy 0.7.2.v20160928-1525
    • kotlin-weaving-feature 0.7.2.v20160928-1525

    在运行应用程序时，这些差异中的任何一个会导致错误吗?

    Can any of these divergences be the cause of the error while running the application?

    您是否看到/知道与这种情况有关的任何潜在原因或已知错误?

    Do you see/know any potential cause or known bug regarding this scenario?

    更新(2017年5月14日)

    尝试使用Eclipse Neon.3(eclipse.buildId = 4.6.3.M20170301-0400)，JDK 1.8.0_111，Kotlin 0.8.2.v20170314-0957(kotlin-eclipse-policy 0.8.2.v20170314-0957， kotlin-weaving-feature 0.8.2.v20170314-0957，Equinox Weaving SDK 1.2.0.201701131634). 问题仍然存在.

    Tried with Eclipse Neon.3 (eclipse.buildId=4.6.3.M20170301-0400), JDK 1.8.0_111, Kotlin 0.8.2.v20170314-0957 (kotlin-eclipse-policy 0.8.2.v20170314-0957, kotlin-weaving-feature 0.8.2.v20170314-0957, Equinox Weaving SDK 1.2.0.201701131634). The problem persists.

    推荐答案

    尝试使用以下插件版本的Java 8(1.8.0_144)和Eclipse Oxygen.1a发行版(4.7.1a-构建ID 20171005-1200):

    Tried with Java 8 (1.8.0_144) and Eclipse Oxygen.1a Release (4.7.1a - build id 20171005-1200) with the following plugin versions:

      Kotlin    0.8.2.v20170314-0957    org.jetbrains.kotlin.feature.feature.group  JetBrains
        kotlin-eclipse-policy   0.8.2.v20170314-0957    org.jetbrains.kotlin.policy.feature.group   JetBrains
        kotlin-weaving-feature  0.8.2.v20170314-0957    org.jetbrains.kotlin.weaving.feature.feature.group  JetBrains
    

    一切正常，而无需创建单独的工作区和/或使用Kotlin File代替Kotlin Class:

    Everything worked as expected, without the need to create a separate workspace and/or use Kotlin File instead of Kotlin Class:

    这篇关于无法在Eclipse中运行Kotlin应用程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！