Thanks for checking, Christophe. I agree that it's strange. I've been
away from gnuradio doing some cyclostationary work, so haven't touched
any flowgraphs in weeks. I see that my newest flowgraphs were built
April 7 and that gnuradio-companion, no doubt after an Ubuntu upgrade,
shows a date of April 9.
I'll share debugging breakthroughs, but would be glad to hear from
others if your GR 3.8.1.0 is or isn't running fine. Most likely, it's
my environment since I don't see a flurry of 'me too' notes.
Mike
On 4/24/21 12:16 PM, Christophe Seguinot wrote:
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
