Hi,
I'm trying to get a labjack UE9 to work on my macbook, but I seem to not even be able to get the thing to open. I don't know how to fix this problem (obviously).
Here's what I've done
- Since I'm OSX, python 2.7.1 is installed. I work with python through ipython.
- I've installed exodriver, I think, nothing went obviously wrong installing it but I also don't know how to verify the installation.
- Downloaded the 5-26-15 release of labjack python. Installed with sudo python setup.py install. Again, nothing went obviously wrong but I also don't know how to verify the installation either.
I then made a very, very simple python file which contained the following
line 1: import ue9
line 2: d = ue9.UE9()
The first line doesn't throw an error - i.e. it seems to be imporrting ue9 with no problem. However, the second line leads to the following error ': AttributeError: 'NoneType' object has no attribute 'LJUSB_OpenDevice''
I don't know how to fix this? Would really appreciate some help here thank you. Let me know if anything is unclear.
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The NoneType error for LJUSB_OpenDevice indicates that function couldn't be found. That function is provided by the Exodriver which is installed to /usr/local/lib/ and is the liblabjackusb.dylib file.
Take a look at our response in this forum topic regarding permissions as it may help your issue (it will apply to the UE9 as well):
https://labjack.com/forums/u3/new-user-need-help-getting-started
If permissions look fine, try the latest LabJackPython version from GitHub which has a Mac update for loading the Exodriver:
https://github.com/labjack/LabJackPython