The 'ds_extras/admin' library is not defined because the defining extension is not installed.

Problem/Motivation

On scanning the display suite module with upgrade status i get this error mentioned below on line 295 of modules/contrib/ds/modules/ds_extras/ds_extras.module.

"The 'ds_extras/admin' library is not defined because the defining extension is not installed. Cannot decide if it is deprecated or not."

Steps to reproduce

Install Upgrade status module and scan display suite.