Hi Christian, never run UHD as superuser, there should not be a reason for this that you can't work around.
Changing the user normally doesn't preserve environment, so, as the error message suggests, you'll have to explicitly set UHD_RFNOC_DIR. Best regards, Marcus On 08.06.20 15:31, Christian Spindelberger via USRP-users wrote: > Hi, > > I have a little problem with the Python API. I installed the UHD 3.15 > driver from source. When I want to utilize the uhd.usrp.MultiUSRP() > command it only works if I launch Python as normal user. If I open the > Python environment with sudo it does not work anymore and I receive the > following error: > > Python 3.6.9 (default, Apr 18 2020, 01:56:04) > [GCC 8.4.0] on linux > Type "help", "copyright", "credits" or "license" for more information. >>>> import uhd >>>> uhd.usrp.MultiUSRP() > [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; > UHD_3.15.0.0-44-g5a9f9ed9 > [INFO] [X300] X300 initialization sequence... > [INFO] [X300] Maximum frame size: 1472 bytes. > [INFO] [X300] Radio 1x clock: 200 MHz > [INFO] [GPS] Found an internal GPSDO: LC_XO, Firmware Rev 0.929b > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "/usr/lib/python3/dist-packages/uhd/usrp.py", line 20, in __init__ > super(MultiUSRP, self).__init__(args) > RuntimeError: AssertionError: Failed to find a valid XML path for RFNoC > blocks. > Try setting the enviroment variable UHD_RFNOC_DIR to the correct location > > > I have read in a former post that this might happen when the driver is > installed with "make install", but I already reinstalled with "sudo make > install" and the same problem remains. > Does anyone know why this happens? > > > Thank you, > > Christian > > > _______________________________________________ > USRP-users mailing list > [email protected] > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com _______________________________________________ USRP-users mailing list [email protected] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
