Issues with killerbee

[lucianoferrari]

When I try to use killerbee I'm getting some error messages:

iot@attifyos ~/t/k/tools> sudo zbid
Dev Product String Serial Number
3:6 KILLERB001 FFFFFFFFFFFF

iot@attifyos ~/t/k/tools> sudo zbstumbler -v
Warning: You are using pyUSB 1.x, support is in beta.
zbstumbler: Transmitting and receiving on interface '3:6'
Setting channel to 11.
Transmitting beacon request.
Traceback (most recent call last):
File "/usr/local/bin/zbstumbler", line 4, in
import('pkg_resources').run_script('killerbee==2.7.1', 'zbstumbler')
File "/home/iot/.local/lib/python2.7/site-packages/pkg_resources/init.py", line 666, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/home/iot/.local/lib/python2.7/site-packages/pkg_resources/init.py", line 1460, in run_script
exec(script_code, namespace, namespace)
File "/usr/local/lib/python2.7/dist-packages/killerbee-2.7.1-py2.7-linux-x86_64.egg/EGG-INFO/scripts/zbstumbler", line 199, in

File "build/bdist.linux-x86_64/egg/killerbee/init.py", line 358, in pnext
File "build/bdist.linux-x86_64/egg/killerbee/dev_rzusbstick.py", line 546, in pnext
File "build/bdist.linux-x86_64/egg/killerbee/dev_rzusbstick.py", line 385, in sniffer_on
File "build/bdist.linux-x86_64/egg/killerbee/dev_rzusbstick.py", line 355, in _open_stream
File "build/bdist.linux-x86_64/egg/killerbee/dev_rzusbstick.py", line 334, in __usb_write
Exception: Error: Semantical Error