Update src/compas_fab/robots/robot.py

Co-authored-by: beverlylytle <[email protected]>

Author: gonzalocasas

src/compas_fab/robots/robot.py

@@ -1010,7 +1010,7 @@ def inverse_kinematics(self, frame_WCF, start_configuration=None, group=None, re
         Configuration((4.045, 5.130, -2.174, -6.098, -5.616, 6.283), (0, 0, 0, 0, 0, 0))    # doctest: +SKIP
         """
         options = options or {}
-        attached_collision_meshes = options.get('attached_collision_meshes')
+        attached_collision_meshes = options.get('attached_collision_meshes', [])
 
         self.ensure_client()
         group = group or self.main_group_name if self.semantics else None