DAQmxWriteAnalogScalar64' not found

Hi,

I am writing a python code, it works fine on the other system but I get the following error:

iotask.write(val)
File "C:\Python27\lib\site-packages\nidaqmx\libnidaqmx.py", line 2660, in write
float64(timeout), float64(data), None)==0
File "C:\Python27\lib\site-packages\nidaqmx\libnidaqmx.py", line 178, in CALL
func = getattr(libnidaqmx, funcname)
File "C:\Python27\lib\ctypes\__init__.py", line 378, in __getattr__
func = self.__getitem__(name)
File "C:\Python27\lib\ctypes\__init__.py", line 383, in __getitem__
func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'DAQmxWriteAnalogScalar64' not found

Could you please help me?

Thanks