This flowgraph is correctly build under GR 3.9.0.0 (no USRP source to
test further)
The error is quite strange, I think there is no "len_tag_name" parameter
in such a simple flowgraph
On 24/04/2021 16:35, Mike Markowski wrote:
I'm running gnuradio companion 3.8.1.0 (Python 3.8.6) on Ubuntu
2020.10. After a few weeks away from gnuradio, today I get errors
with the USRP UHD Source, and previously working flowgraphs no longer
build. (Previously built flowgraph python files still run fine.) The
attached flowgraph doesn't get much simpler, but building yields:
Generating: '/home/mm/sdr/fm/uhdTest.py'
Generate Error: (NameError("'len_tag_name' is not defined"),
'uhd.usrp_source(\n ",".join((${dev_addr}, ${dev_args})),\n
uhd.stream_args(\n cpu_format="${type}",\n
[... on and on ...]
, uhd.ALL_MBOARDS)\n% else:\n# No synchronization enforced.\n% endif\n')
>>> Failure
Traceback (most recent call last):
File "memory:0x7f3082ab36d0", line 136, in render_body
File "/usr/lib/python3/dist-packages/mako/runtime.py", line 106, in
__getitem__
return compat_builtins.__dict__[key]
KeyError: 'len_tag_name'
[... still more...]
Is anyone else seeing this error?
Thanks,
Mike
