＆QUOT;无法找到给定的启动配置＆QUOT主要方法;从Eclipse的出口罐子时出错 [英] "Could not find main method from given launch configuration" error when exporting jar from Eclipse

问题描述

我公司开发使用Eclipse作为我的IDE我的计划。我用文件|导出|可运行的JAR文件选项为客户创造DIST构建。

I developed my program using Eclipse as my IDE. I used to use File|Export| Runnable JAR file option for creating dist build for client.

我是用运行或（经常）在eclipse调试按钮项目工作（所以我必须配置与有效的方法主要项目）。

I was working with project using Run or (often) Debug button in eclipse (so I have configuration for project with valid main method).

不幸的是，当我创建的构建昨天我下面的错误，当我试图运行的应用程序：

Unfortunately when I created build yesterday I had following error when I tried to run app:

Failed to load Main-Class manifest attribute from My.jar

后来，当我重试出口，我发现在导出日志以下问题：

Then when I retried exporting I found the following problem in export log:

Could not find main method from given launch configuration

我不知道什么可能导致此问题。我觉得我没有改变我的项目配置任何东西。而且我测试我的建立，所以我敢肯定，使用这个选项才能正常工作。

I have no idea what could cause this problem. I think I hadn't change anything in my project configuration. And I'm test my builds so I'm sure this option used to work correctly.

我将AP preciate任何帮助。

I will appreciate any help.

推荐答案

您在导出对话框中选择正确的启动配置？请确保它在你的项目。

Are you selecting correct 'Launch Configuration' in the export dialog? Make sure it's from your project.

此外，一旦出口可以解压缩jar文件，看看META-INF / MANIFEST.MF文件 - 应该有主类条目用你的类，其中main（）方法是完全合格的名称。

Also, once exported you could unzip jar file and look into 'META-INF/MANIFEST.MF' file - there should be 'Main-Class' entry with fully qualified name of your class where the main() method is.

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