Lessphp fatal error after moving WordPress site

lessphp fatal error: load error: failed to find /wp-content/themes/themexyz/bootstrap/less/bootstrap.lesslessphp fatal error: load error: failed to find wp-content/themes/themexyz/style.less

Remedy:

2 files need to be removed manually:

wp-content/themes/themeXXXXX/bootstrap/less/bootstrap.less.cache;

wp-content/themes/themeXXXXX/style.less.cache;