[BUG] EPIC chain IK_FK_01 filing building using mode FK/IK.

[MilioSerrano]

= BUILDING RIG ==============================================

Initial Hierarchy
Init : chain_C0 (EPIC_chain_IK_FK_01)
Objects : chain_C0 (EPIC_chain_IK_FK_01)
Properties : chain_C0 (EPIC_chain_IK_FK_01)
Operators : chain_C0 (EPIC_chain_IK_FK_01)
# Error: The destination attribute 'chain_C0_fk0_ctlW0' cannot be found.
# # Traceback (most recent call last):
# #   File "C:\Users\Milio_PC\Documents\maya\modules\scripts\mgear\shifter\guide_manager.py", line 91, in build_from_selection
# #     rg.buildFromSelection()
# #   File "C:\Users\Milio_PC\Documents\maya\modules\scripts\mgear\shifter\__init__.py", line 265, in buildFromSelection
# #     self.build()
# #   File "C:\Users\Milio_PC\Documents\maya\modules\scripts\mgear\shifter\__init__.py", line 299, in build
# #     self.processComponents()
# #   File "C:\Users\Milio_PC\Documents\maya\modules\scripts\mgear\shifter\__init__.py", line 547, in processComponents
# #     comp.stepMethods[i]()
# #   File "C:\Users\Milio_PC\Documents\maya\modules\scripts\mgear\shifter\component\__init__.py", line 179, in step_02
# #     self.addOperators()
# #   File "C:\Users/Milio_PC/Documents/maya/modules/scripts/mgear/shifter_epic_components\EPIC_chain_IK_FK_01\__init__.py", line 278, in addOperators
# #     pm.connectAttr(rev_node + ".outputX", weight_att[0])
# #   File "C:\Users\Milio_PC\Documents\maya\modules\scripts\mgear\pymaya\cmd.py", line 252, in wrapper
# #     res = func(*args, **kwargs)
# # RuntimeError: The destination attribute 'chain_C0_fk0_ctlW0' cannot be found.