“无法从给定的启动配置中找到主要方法”使用Java + Scala + Slick2D时 [英] "Could not find main method from given launch configuration" when using Java+Scala+Slick2D

问题描述

我有一个项目，我正在使用Java + Scala + Slick2D。

I've got a project in which I'm using Java+Scala+Slick2D.

项目本身在eclipse中启动时运行良好。但是当我尝试制作一个jar文件时，它只是拒绝工作。这是我在尝试将其导出为Runnable jar时遇到的错误：

The project itself runs well when launched from within eclipse. But when I try to make a jar file, it just refuses to work. Here's the error I keep getting when trying to export it as a Runnable jar:

如果我尝试导出只是一个Jar文件，它就无法找到主类：

And if I try to export into just a Jar file, it's unable to find the Main Class:

当然，游戏中有一个主要类.TicTacGame。但它拒绝承认它。我尝试用简单的Hello World项目创建一个可执行文件，它运行正常。它甚至可以检测到主类。为什么Eclipse在这种情况下没有检测到主类？

There is, of course, a main class in game.TicTacGame. But it refuses to acknowledge it. I tried creating an executable with a simple Hello World project and it worked fine. It even detects the main class. Why is Eclipse not detecting the main class in this case?

PS：我也尝试提取创建的.jar文件，编辑manifest.mf文件以添加Main-Class：game.TicTacGame，输入两个新行并重新创建jar。然后它给了我一个损坏的jar文件错误。

PS: I've also tried extracting the .jar file created, editing the manifest.mf file to add the Main-Class: game.TicTacGame, enter two new lines and recreate the jar. Then it gives me a corrupted jar file error.

我在我的智慧结束，并希望在这方面有任何帮助。我正在使用带有Eclipse Juno，Java 1.7和Scala 2.10的Windows 7 x64

I'm at my wits end and would appreciate any help in this regard. I'm using Windows 7 x64 with Eclipse Juno, Java 1.7 and Scala 2.10

编辑：Main类是Java

The Main class is in Java

推荐答案

好的，我得到了它的工作。显然，我需要做的就是重启eclipse。然后神奇地，它开始检测Main类：

Okay, I got it to work. Apparently, all I needed to do was restart eclipse. And then magically, it started detecting the Main class:

但是jar开始为Slick2d，LWJGL和其他库提供noClassDefFound错误。这就是 JarSplice 来救我的地方。我像以前一样导出了项目，包括所有库和资源。

But the jar started giving me noClassDefFound errors for the Slick2d, LWJGL and other libraries. That's where JarSplice came to my rescue. I exported the project as before, with all the libraries and resources.

然后，我启动了JarSplice并添加了以下所有内容：

Then, I fired up JarSplice and added everything as follows:

1. 转到Add Jars并添加刚刚通过eclipse创建的project.jar，添加lwjgl.jar，slick.jar和scala-library.jar。 lwjgl和slick应该在您要导入它们的项目lib文件夹中。 scala-library应该在它所说的任何地方都可用。确保你也添加


2. 接下来，当我尝试添加原生时，它一直给我重复库错误。所以我将它们全部删除并保持空白。


3. 接下来在主类中，我进入了主类的路径，即game.TicTacGame


4. 最后，创造脂肪罐。它完美无缺：:)

1. Go to "Add Jars" and add the project.jar just created through eclipse, add lwjgl.jar, slick.jar and scala-library.jar. lwjgl and slick should be in your project lib folder where you would have imported them. scala-library should be available wherever it says it is. Make sure you add that as well
2. Next, when I tried to "Add Natives" it kept giving me "Duplicate library" error. So I removed them all and kept it empty.
3. Next in "Main Class", I entered the path to the main class i.e. game.TicTacGame
4. Finally, "Create Fat Jar". And it works perfectly :)

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