运行npm run dev或npm run build时出现bash脚本命令未找到错误的求助

Hey there, let's work through this error you're hitting! The error /usr/bin/bash: D:Tempdev-1656515078305.sh: command not found points to a path parsing conflict between Windows-style file paths and Unix-like shell environments (like Git Bash or WSL). Here's how to fix it:

核心原因 #

Your terminal is trying to interpret a Windows temporary file path (like D:\Temp\dev-xxxx.sh) using a bash shell, which doesn't recognize the D:Temp format — bash expects /mnt/d/Temp/... for WSL, or proper Windows path syntax for native terminals like Command Prompt/PowerShell.

分步解决方案 #

1. 切换到适配的终端环境 #

• If you’re using Git Bash or WSL, try running commands in Windows’ native Command Prompt or PowerShell instead. These environments handle Windows paths natively without parsing errors.
• If you need to use WSL, move your project to the WSL filesystem (e.g., /home/your-username/your-project) instead of a mounted Windows drive (/mnt/d/...). Cross-filesystem script execution often causes path misinterpretation.

2. 清理npm缓存并重装依赖 #

Corrupted cached files might be causing odd path glitches. Run these commands in order:

npm cache clean --force
rm -rf node_modules package-lock.json
npm install

Then test npm run dev again.

3. 修复文件换行符 #

Windows uses CRLF line endings, while Unix shells prefer LF. If your project was created on Windows and run in a bash environment, mismatched line endings can break script execution:

• In VS Code, open your package.json, click the CRLF/LF indicator in the bottom-right corner, and switch to LF.
• If you have dos2unix available in your shell, convert the file directly:

  dos2unix package.json
  

4. 直接测试Next.js命令 #

Skip the npm script temporarily to rule out script-related issues. Run:

npx next dev

If this works, the problem is likely tied to how npm generates temporary scripts in your environment.

确认你的环境信息 #

Just to recap what you shared:

• Node.js version: v16.14.2
• npm version: 8.13.1
• Relevant package.json scripts:

  {
    "scripts": {
      "dev": "next",
      "build": "next build",
      "start": "next start",
      "type-check": "tsc"
    }
  }
  

Give these steps a try, and let me know if you still run into issues!

内容的提问来源于stack exchange，提问作者Florian