I've just installed PyVISA using pip
import visa
rs = visa.ResourceManager()
I get this error
Traceback (most recent call last):
File "", line 1, in
File "C:\Anaconda3\lib\site-packages\pyvisa\highlevel.py", line 1486, in new
obj.session, err = visa_library.open_default_resource_manager()
File "C:\Anaconda3\lib\site-packages\pyvisa\ctwrapper\functions.py", line 1212, in open_default_resource_manager
ret = library.viOpenDefaultRM(byref(session))
File "C:\Anaconda3\lib\site-packages\pyvisa\ctwrapper\highlevel.py", line 180, in _return_handler
raise errors.VisaIOError(ret_value)
pyvisa.errors.VisaIOError: VI_ERROR_LIBRARY_NFOUND (-1073807202): A code library required by VISA could not be located or loaded.
there's a similar question posted here, based on there suggestion I've tried the following on command prompt:
python -c "from pyvisa import util; util.get_debug_info()" & I get this responce,
enter image description here
from the above picture, it's very clear that the error message is the same on both the cases, I have also checked Visa Version from NI MAX: Visa 4.3
enter image description here
am I missing something, Could anybody help?
1 Answer 1
Finally, I was able to fix the issue just by upgrading NI VISA version from 4.3 to 5.4.1.
- UnInstall Old NI-VISA Version from Control Panel (
National Instruments Software --> Products --> NI-VISA 4.3 & Remove) - Install NI-VISA 5.4.1 from here and reboot your pc
not sure why Visa 4.3 produces the issue, but anyways VISA Ver. 5.4.1 is the solution in my case.