It is quite easy to create a Child Theme in WordPress. See how.

The most important step is to include the “Template” parameter in the metadata that declared in the comments of the file style.css.

For example:

Only child themes will include “Template” in metadata.

The value of “Template” must be the parent theme directory (not the name). Without this line or if the directory mentioned in the “Template” does not exist, the Child Theme will not work.

Without “Template”, you will get the error:

With an invalid “Template”, you will get the error:

References

• Official Documentation: Child Themes
• Official Documentation: Theme Handbook
• https://developer.wordpress.org/reference/functions/get_stylesheet_directory_uri/