Wrong skeleton/armature name!

Wrong skeleton/armature name! The main skeleton/armature name does not end with the tag "BODY"!

The BODY tag helps us identify which skeleton needs to receive animation data. This message indicates that the name of the skeleton that is assigned as the main pose skeleton does not end with the tag BODY.

Blender

The Armature object that contains the required bones needs to have the "_BODY" suffix.

Maya

>>> [ERROR] Rig group suffix check - FAIL.
  > Wrong skeleton/armature name! The main skeleton/armature name does not end with the tag "BODY"!
  > Rig and blendshapes need to be contained inside a group with the "_BODY" suffix.
  > Rig group name example: "character_BODY".

The rig (skeleton) and all of the blend shapes need to be contained inside a group with the "_BODY" suffix appended to i (E.g. exampleCharacter_BODY)

More information can be found under Scene Organization section at the following page:

pageCharacter Setup