I migrated from the WordPress plugin All in One SEO Pack to Yoast SEO.
When I updated All in One SEO Pack to the latest version 2.9, the Twitter Card Validator displayed the error message ERROR: No card found (Card error).
First, remove the All in One SEO Pack plugin.
For Yoast SEO installation and configuration, I proceeded by referencing the following three articles:
Since all these articles are written in detail, I don’t have anything particular to mention in this article.
That’s all about migrating WordPress plugins from All in One SEO Pack to Yoast SEO from the Gemba.