Angular CLI项目运行时出现Source File Not Found错误求助

Hey there, let’s walk through this common issue together—just because the folder exists doesn’t mean your project is looking in the right place or has proper access to it. Here are some practical troubleshooting steps to try:

• Double-check path case sensitivity
  Operating systems like Linux and macOS are case-sensitive when it comes to file paths. If your code references ./Assets/MyFile.js but the actual folder is named ./assets/MyFile.js, the system won’t recognize it. Use ls (Linux/macOS) or dir (Windows) in your terminal to confirm the exact casing of your folder and file names.

• Verify your working directory
  Relative paths in your code are based on the directory you run your project from, not the directory where your code file lives. For example, if your script is in src/utils/ and references ../data/file.json, but you start the project from the root folder, your code is actually looking for ./data/file.json instead of src/data/file.json. Print your current working directory to confirm:

  • Python: import os; print(os.getcwd())
  • JavaScript/Node.js: console.log(process.cwd())

• Check file/folder permissions
  Even if the folder exists, the user running your project might not have read access to it. On Linux/macOS, run ls -l in the parent directory to view permissions—look for r (read) permissions for your user group. If needed, adjust permissions with chmod +rX your-folder/ (the X gives execute access to folders, which is required to navigate into them).

• Validate build tool configurations
  If you’re using tools like Webpack, Vite, Maven, or Gradle, their configuration files might have incorrect path mappings. For example:

  • In Vite’s vite.config.js, check if resolve.alias points to the right folder
  • In Webpack, verify resolve.modules or entry paths match your project structure

• Clear cache and rebuild
  Old build caches can sometimes cause path mismatches. Delete cache directories (like node_modules/.cache, dist, or target depending on your stack) and rebuild your project from scratch. This ensures you’re working with fresh, up-to-date path references.

• Check for broken symlinks
  If your "folder" is actually a symbolic link (soft link), the target it points to might be missing or inaccessible. Try navigating directly to the symlink’s target path to confirm it exists and is readable.

If none of these work, sharing more details like your tech stack, the exact error message, or a snippet of the code that’s throwing the error can help narrow things down further!

内容的提问来源于stack exchange，提问作者kintela