Failed to resolve import "@/styles/var.less" from "src\main.js". Does the file exist?

This error message indicates that the file `var.less` located in the `@/styles` directory cannot be found by the JavaScript file `main.js` located in the `src` directory.

Here are a few things you can try to fix this issue:

1. Make sure that the file `var.less` exists in the `@/styles` directory. Double-check the spelling and capitalization of the file name.
2. Check if the path to `var.less` is correct. The `@` symbol is often used as an alias for the `src` directory, but this may vary depending on your project's configuration.
3. Ensure that you have correctly imported `var.less` in `main.js`. The import statement should look something like this: `import "@/styles/var.less";`.
4. Check if you have installed any necessary dependencies for compiling and processing your LESS files. For example, you may need to install `less-loader` and `less` using npm or yarn.

If none of these solutions work, please provide more information about your project configuration and any relevant error messages.