Others have reported this elsewhere (not indicating a relation to Display Suite, and I don't know whether they have it installed, or if other modules like CTools can lead to the error on their own), so it's possible it's not related to DS directly:
http://drupal.org/node/1304664#comment-5214362
https://drupal.org/node/1332872#comment-5214358

However, I had the same error after creating a content type and when trying to add/edit fields, but it seemed to go away once I selected a DS layout for the content type (Manage Display > Layout for [content_type] in default), which defaults to None.

This "none" as default had also earlier confused me when nothing displayed after creating a content type. It doesn't seem like the best default behavior.

Perhaps "None" should be removed from the menu, and 1-Column should be made the default? (Or at least make 1-Column the default even if there is a use case for None.)

Comments

njcheng’s picture

Just wanted to add some related threads with reports of the same error message in hopes that it helps maintainers figure out where the real problem lies. It seems to be affecting many modules in many contexts when a content or field is deleted:

http://drupal.org/node/686938
http://drupal.org/node/1351506
http://drupal.org/node/1332872
http://drupal.org/node/1357792

swentel’s picture

Status: Active » Postponed (maintainer needs more info)

If you disable DS, do you still get those errors ? It should since the error comes from Field UI. Note, this comment is one of the most interesting yet : http://drupal.org/node/1351506#comment-5303380.

swentel’s picture

Status: Postponed (maintainer needs more info) » Closed (cannot reproduce)

Closing this one - need better steps to reproduce this stuff.