Problems with uldaq installation

[lorenzorussotto]

Hello, 

I have followed the instructions to download, install and configure uldaq on my MacBook (Big Sur 11.6, Chip M1). The installation of the module seems fine, but when I run my program that imports uldaq:

import uldaq

I get this error:

OSError: dlopen(/usr/local/lib/libuldaq.dylib, 6): no suitable image found.  Did find:
        /usr/local/lib/libuldaq.dylib: mach-o, but wrong architecture
        /usr/local/lib/libuldaq.1.dylib: mach-o, but wrong architecture

Any advice would be appreciated!

Thanks

[JRys]

Hi Lorenzo,

Do you get this error with the ULDaq python examples? What is the HW device and which example?

Thanks

John

[lorenzorussotto]

Hi John,

Yes, I get it with the example files. I have edited to iterate measurements in a way that is useful to my experiments (without touching the parts of code that take care of communication or setup of the device) and it does not work. I do not think that the problem is in the python files as much as in the installation of uldaq itself in my Mac, since if I run the same identical code in a different machine (Linux) where all of the system had been installed months ago, it works fine.

I am using a device USB-1608G Series High Speed Multifunction

[JRys]

did you notice an error during the ./config && make, if so the following may help: 

 

[lorenzorussotto]

Hello John,

This had given me problems in the past few days but I had been able to overcome the libusb issue, configure, and make it. 

I also ran the "pip install uldaq" command, and it did not give me errors... for some reason though, it seems like the version of uldaq that I am installing on my computer has the wrong architecture...

[JRys]

change directory --> \libuldaq-1.2.1\examples\

run the following

./AIn

and

./AInScan

if they run, then the driver is installed and it's the Python stuff giving you fits.

[lorenzorussotto]

I have tried...

I get this error below. Is it possible that uldaq does not work with M1 chip and needs the Intel (x86_64 architecture?)

OSError: dlopen(/usr/local/lib/libuldaq.dylib, 0x0006): tried: '/usr/local/lib/libuldaq.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/usr/local/lib/libuldaq.1.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64'))

[JRys]

We have uldaq running on a MacBook Pro with the M1 chip running the latest macOS 12.4 (Monterey). I can only speculate that maybe it is building to x86_64. What is the output from "gcc --version" 

 

[lorenzorussotto]

Hi John, the command

gcc --version 

on my terminal outputs this

Apple clang version 13.1.6 (clang-1316.0.21.2.5)
Target: arm64-apple-darwin21.5.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

 

[JRys]

your system pretty much matches mine. I check my /usr/local/lib folder and there should be a file named libuldaq.1.dylib (3.3M). Also, a file name libusb-1.0.0.dylib (192k). Here's what mine looks like: