This error message indicates that the module ‘del’ cannot be found. It seems that the ‘del’ package is not installed or not properly configured in your project.
Try installing the ‘del’ package by running the following command in your terminal:
npm install del --save-dev
If you have already installed ‘del’ package and still getting this error, try uninstalling and then reinstalling it.
npm uninstall del
npm install del --save-dev
Also make sure that you have the latest version of npm and node installed on your machine.
npm install -g npm
After installing or reinstalling ‘del’ package, you can try running the gulp command again and see if the error persists.