I am running macOS 10.14.6 and grc 3.7.13.5.  After troubleshooting the missing 
variable error in gr-ieee802 after a macport update, I now have the following 
error:

Traceback (most recent call last):
  File “~/Documents/Research/gr-ieee802-11/examples/wifi_rx.py", line 380, in 
<module>
    main()
  File “~/Documents/Research/gr-ieee802-11/examples/wifi_rx.py", line 368, in 
main
    tb = top_block_cls()
  File “~/Documents/Research/gr-ieee802-11/examples/wifi_rx.py", line 152, in 
__init__
    self.uhd_usrp_source_0.set_auto_dc_offset("", 0)
  File 
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/uhd/uhd_swig.py",
 line 3582, in set_auto_dc_offset
    return _uhd_swig.usrp_source_sptr_set_auto_dc_offset(self, enb, chan)
TypeError: in method 'usrp_source_sptr_set_auto_dc_offset', argument 2 of type 
'bool'

The loopback block runs fine. It seems UHD may have changed? Anyone having the 
problem? I tried to upgrade gr to 3.8 but macports is only fetching 3.7

v/r,

Carlos
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