UHD Error:The daughterboard manager encountered a recoverable error in init

I have a usrp1 and want to execute usrp_wfm_rcv.py using TVRX
daughterboard. ( Also tried to send a signal with gnuradio-companion.
(Usrp-source + scope-sink) ) But an error occured : UHD error :

<< Welcome to GNU Radio Companion 3.5.1git-22-gf395bd63 >>>

Showing: “”

Generating: “/home/mervedeniz/Desktop/top_block.py”

Executing: “/home/mervedeniz/Desktop/top_block.py”

linux; GNU C++ version 4.6.1; Boost_104601; UHD_003.004.000-7dc76db

– Loading firmware image: /usr/local/share/uhd/images/usrp1_fw.ihx…

– Opening a USRP1 device…

– Loading FPGA image: /usr/local/share/uhd/images/usrp1_fpga.rbf…

– Using FPGA clock rate of 64.000000MHz…

*UHD Error: *

  • The daughterboard manager encountered a recoverable error in init *

  • SystemError: invalid code path *

  • in std::string get_band(double) *

  • at /home/mervedeniz/uhd/host/lib/usrp/dboard/db_tvrx.cpp:256 *

Traceback (most recent call last):

File “/home/mervedeniz/Desktop/top_block.py”, line 75, in

tb = top_block()

File “/home/mervedeniz/Desktop/top_block.py”, line 51, in init


File “/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/init.py”,
line 112, in constructor_interceptor

return old_constructor(*args)

File “/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py”,
line 2811, in usrp_source

return _uhd_swig.usrp_source(*args)

RuntimeError: RuntimeError: Cannot create! Property already exists at:

After this tried RFx1800 daughterboard with gnuradio-companion, then
worked. So usrp1 is seen by my computer. (no problem )

But TVRX board didn’t worked !!!