drush cr causes fatal error (custom module issue)

The geolocation module (somebody else’s) does not reference my mapping_uk module or vice versa, and yet this happens when doing ‘drush cr’:

PHP Fatal error:  Call to undefined method Drupalmapping_ukUKMappingCode::getViewsFieldData() in /Library/WebServer/Documents/my_project/modules/geolocation/geolocation.views.inc on line 20

Fatal error: Call to undefined method Drupalmapping_ukUKMappingCode::getViewsFieldData() in /Library/WebServer/Documents/my_project/modules/geolocation/geolocation.views.inc on line 20
Drush command terminated abnormally due to an unrecoverable error.                                             [error]
Error: Call to undefined method Drupalmapping_ukUKMappingCode::getViewsFieldData() in
/Library/WebServer/Documents/my_project/modules/geolocation/geolocation.views.inc, line 20

There must be some logical explanation that I’m missing here. Any ideas how to debug this?

Thanks!

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