Error loading Arnold module (Gaffer 1.5.9.0 and Arnold 7.4.0.0)

[Rachid Hadj abderrahmane]

Hi
I'm having this error when starting Gaffer

• ERROR : startup/gui/menus.py : Error loading Arnold module - "DLL load failed while importing _IECoreArnold: The specified procedure could not be found.".
• ERROR :  Traceback (most recent call last):
• ERROR :   File "C:\Gaffer\startup\gui\menus.py", line 120, in <module>
• ERROR :     import GafferArnold
• ERROR :   File "C:\Gaffer\python\shiboken2\files.dir\shibokensupport\feature.py", line 139, in _import
• ERROR :     return original_import(name, *args, **kwargs)
• ERROR :   File "C:\Gaffer\arnold\7.4\python\GafferArnold\__init__.py", line 37, in <module>
• ERROR :     __import__( "IECoreArnold" )
• ERROR :   File "C:\Gaffer\python\shiboken2\files.dir\shibokensupport\feature.py", line 139, in _import
• ERROR :     return original_import(name, *args, **kwargs)
• ERROR :   File "C:\Gaffer\arnold\7.4\python\IECoreArnold\__init__.py", line 44, in <module>
• ERROR :     from ._IECoreArnold import *
• ERROR :   File "C:\Gaffer\python\shiboken2\files.dir\shibokensupport\feature.py", line 139, in _import
• ERROR :     return original_import(name, *args, **kwargs)
• ERROR : ImportError: DLL load failed while importing _IECoreArnold: The specified procedure could not be found.