the href attribute is required for an anchor to be keyboard accessible. react code example
Example 1: React site warning: The href attribute requires a valid address. Provide a valid, navigable address as the href value jsx-a11y/anchor-is-valid
// just change
href="#" // -> to correct url
Example:
href="https://learn-tech-tips.blogspot.com/"
Example 2: he href attribute is required for an anchor to be keyboard accessible
<a href="javascript:void(0)">link</a>