error: no main class specified
时间: 2023-04-21 18:01:41 浏览: 103
错误:未指定主类
这个错误通常是由于在运行Java程序时没有指定主类所导致的。要解决这个问题,需要在运行命令中指定主类。例如,如果你的主类名为Main,你可以使用以下命令来运行程序:
java Main
如果你使用的是IDE,你需要确保你的项目中已经指定了主类。
相关问题
Error: No Spring Boot application class specified
As an AI language model, I do not have access to your code or environment to accurately diagnose the issue. However, this error usually occurs when you have not specified the main application class in your Spring Boot project. To resolve the issue, make sure that you have a class annotated with `@SpringBootApplication` and with a `main` method that serves as the entry point for your application.
Here is an example of a simple Spring Boot application class:
```
@SpringBootApplication
public class MyApplication {
public static void main(String[] args) {
SpringApplication.run(MyApplication.class, args);
}
}
```
Make sure that the class name and package name match your project structure. If the error persists, try cleaning and rebuilding your project or checking if all the necessary dependencies are included in your `pom.xml` file (if you are using Maven) or `build.gradle` file (if you are using Gradle).
Error: Module not specified
当在使用IDEA时,调用main方法时,出现"Error: Module not specified"错误,意思是没有指定module。解决这个问题的方法是在对话框中选择一个module来使用classPath。通过选择一个合适的module,可以解决这个问题。<span class="em">1</span>
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