On a Drupal version 7.5x, error suddenly appears: User warning: The following module is missing from the file system: media_wysiwyg_view_mode

It seems the previous version of Media apparently caused the error of the sub-module going “missing”. Updating Media module from previous to latest fixed the issue.

Previous version

Version Download Date
7.x-1.5Full release covered by the Drupal Security Team tar.gz (181.13 KB) | zip (214.91 KB) 2015-Mar-21

Updated to latest (to date)

Version Download Date
7.x-2.0-beta9 tar.gz (132.15 KB) | zip (177.84 KB) 2016-Nov-20
Similar module errors or warnings may appear, and updating the modules, even core, willl be the first measure you will need to check before troubleshooting any further. Make sure you have good backups before doing so. Additionally, also check the documentation page for similar errors as advised – https://www.drupal.org/node/2487215