Error: Cannot find module 'mock/article'

This error message means that the module 'mock/article' is not installed or cannot be found in the project directory.

To resolve this error, you can try the following steps:

1. Check if the module is installed: Make sure that the 'mock/article' module is installed by running the command 'npm ls mock/article' in the project directory.

2. Install the module: If the module is not installed, you can install it by running the command 'npm install mock/article' in the project directory.

3. Check the file path: Ensure that the file path to the 'mock/article' module is correct and that the file exists in the specified directory.

4. Restart the server: If the error still persists, try restarting the server and running the application again.