Exclude some rules in the phpcs.xml file

@Ashutosh Ahirwal Have you tested the theme?

There is no sense to fix coding standards, typos and similar tasks if, for example some project has fatal errors preventing it from working at all. From you post I see the theme is placed into modules folder instead of the themes:

/Users/ashutoshahirwal/Sites/lando/contribution/web/modules/custom/etc/components/block/block/block.css

Before this project will get its stable release please don't use DrupalPractice while checking coding standards.

The version: VERSION line was used for developing purposes and now might be removed. Notice that line will be added by the generate-theme command again into your_theme.info.yml file when generating new theme out of the etc:

https://git.drupalcode.org/project/etc/-/blob/1.0.x/README.md#renaming-t...

The Class definition is empty (empty rule) error is expected. Example:

[data-component-id="etc:menu_local_tasks"] {
  /* Add your styles here */
}

I found it very convenient for developing when you click at some element in a browser dev tools and see which .css file is responsible for theming of the element (component). Even if it has no any specific rules defined yet. Hope you will found it useful too. A rule for the error might be excluded in the theme's phpcs.xml file.

The same with the Line exceeds 80 characters in README.md files. It is very rare case when this file is open in a text editor for reading. People either read it online on a https://git.drupalcode.org/project/etc page or use tools like https://github.com/KDE/ghostwriter . Additionally, there are a lot of modules allowing to render this file directly on a Drupal site. So this error also should be excluded in the phpcs.xml file.