vue cli - Uncaught SyntaxError: Unexpected token <

To troubleshoot the error "Uncaught SyntaxError: Unexpected token <", which typically occurs in a Vue project when there is an issue with the JavaScript code, you can follow these steps:

  1. Open your browser's developer console: This can usually be done by right-clicking on your web page, selecting "Inspect" or "Inspect Element," and navigating to the "Console" tab.

  2. Look for the specific line number mentioned in the error message: The error message should indicate the line number where the unexpected token < is encountered. This will help you identify the problematic code.

  3. Check for syntax errors: Review the code around the line number mentioned in the error message, looking for any syntax errors such as missing closing parentheses, brackets, or semicolons. These can cause the unexpected token error.

  4. Verify the file type: Ensure that the file where the error occurs is a JavaScript file and not an HTML or other file type. The error message indicates that the browser encountered an unexpected token <, which suggests that it might be trying to interpret an HTML tag as JavaScript code.

  5. Check for incorrect imports or file paths: If you are using import statements or file paths in your code, make sure they are correct. Incorrect imports or file paths can result in the browser trying to interpret an HTML file as JavaScript.

  6. Review the build process: If you are using a build process like Vue CLI, make sure that the build process is correctly bundling your JavaScript files. Sometimes, errors can occur if the build process is not configured properly or if there are issues with the build tools.

  7. Clear browser cache: Clear your browser cache to ensure that you are running the latest version of your code. Sometimes, cached files can cause unexpected errors.

By following these steps, you should be able to identify and resolve the "Uncaught SyntaxError: Unexpected token <" error in your Vue project.