error Command "build" not found.

这个错误通常是因为您的项目缺少构建脚本或者您没有在正确的目录下执行构建命令。请检查您的项目根目录下是否有一个构建脚本，比如 package.json 或者 build.gradle 等文件。如果您的项目是使用某个框架构建的，比如 React 或者 Vue.js，那么您需要查看该框架的文档，以确定正确的构建命令。例如，如果您使用的是 React，那么您可以尝试执行 `npm run build` 或者 `yarn build` 命令来构建您的项目。如果您仍然无法解决问题，请提供更多的细节，以便我能够更好地帮助您。

相关问题

报错mingw-w64-build: command not found

The error "mingw-w64-build: command not found" typically indicates that the mingw-w64-build command is not installed on your system or it is not in the PATH environment variable.

To fix this issue, you can try the following steps:

1. Install mingw-w64-build: If mingw-w64-build is not installed on your system, you can install it using a package manager such as apt-get or yum. For example, on Ubuntu, you can use the following command to install it:

   sudo apt-get install mingw-w64-tools

2. Add mingw-w64-build to PATH: If mingw-w64-build is installed, but the command is still not recognized, you may need to add the directory containing the mingw-w64-build executable to your PATH environment variable. You can do this by adding the following line to your shell profile file (e.g., ~/.bashrc, ~/.zshrc):

   export PATH=$PATH:/path/to/mingw-w64-build

Make sure to replace "/path/to/mingw-w64-build" with the actual path to the directory containing the mingw-w64-build executable.

After following these steps, try running the mingw-w64-build command again to see if the issue has been resolved.

Driver class 'com.mysql.cj.jdbc.Driver' not found.

This error message typically occurs when attempting to establish a connection to a MySQL database using JDBC, but the MySQL JDBC driver is not included in the classpath of the application or server.

To resolve this issue, you should download the MySQL JDBC driver from the official website and add it to the classpath. This can be done by either adding the JAR file to the project dependencies or by adding it to the server's classpath.

If you are using an IDE, such as Eclipse or IntelliJ IDEA, you can add the MySQL JDBC driver to your project by right-clicking on the project and selecting "Build Path" > "Configure Build Path" > "Libraries" > "Add External JARs" and selecting the downloaded JAR file.

If you are running a Java application from the command line, you can add the MySQL JDBC driver to the classpath using the "-cp" or "-classpath" option. For example:

java -cp mysql-connector-java-8.0.26.jar MyApplication

Alternatively, you can set the CLASSPATH environment variable to include the path to the MySQL JDBC driver.

It is important to ensure that the driver class name used in the JDBC connection URL matches the actual driver class name in the JAR file. For MySQL 8.0 or later, the driver class name is "com.mysql.cj.jdbc.Driver".