problems with the gr3.9 version

[mikotaFull]

Hello,
I have gnuradio 3.10 and I installed the version of gr-air-modes for gr3.9. The installation went well but when I execute
rx_modes I don't get any messages, and I know that there are messages where I am because I have gr-air-mode running in another computer and messages appear there. Can you help me to find and fix this problem?

[bistromath]

I haven't yet tried GR 3.10. I'm surprised it compiled cleanly; I thought there were breaking API changes.

Do other GR 3.10 applications work for you on that computer?

[mikotaFull]

I haven't tried other apps, but gnuradio works perfectly.
Is there something that i can do?
but it's super strange...
it works perfectly but when it comes to display the messages it bugs

Inspiron-3793:~$ modes_rx
gr-air-modes warning: numpy+scipy not installed, FlightGear interface not supported
[INFO] [UHD] linux; GNU C++ version 9.2.1 20200304; Boost_107100; UHD_3.15.0.0-2build5
[INFO] [B200] Loading firmware image: /usr/share/uhd/images/usrp_b200_fw.hex...
[INFO] [B200] Detected Device: B200
[INFO] [B200] Loading FPGA image: /usr/share/uhd/images/usrp_b200_fpga.bin...
[INFO] [B200] Operating over USB 2.
[INFO] [B200] Detecting internal GPSDO....
[INFO] [GPS] No GPSDO found
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
[INFO] [B200] Asking for clock rate 32.000000 MHz...
[INFO] [B200] Actually got clock rate 32.000000 MHz.
Setting gain to 38
Gain is 38
Rate is 4000000