Re: [Discuss-gnuradio] Messages with Virtual Source/Sinks Issue?

[Richard Bell]

I just setup a simple debug test that reproduces the issue. Screen captures attached. You see what I see before and after the message and the error message itself.

Hope this helps.

Rich

On Thu, Jan 21, 2016 at 10:59 AM, Richard Bell <address@hidden> wrote:

Yes I did. I also deleted the virtual source and sinks and replaced them, as well as the blocks that were in front of/behind those virtuals, that didn't help.

So I pulled from git to get the latest code and re-installed. I'm now using gr 3.7.10, and the error persists.

Here is some more information:

1) Whenever I open grc fresh, I get those messages and the wires are disconnected automatically. I can reconnect them and run the flowgraph, and it works fine. But the next time I close and re-open grc, the error messages will be printed and the wires will be disconnected.

2) If after I've connected the message ports I make a change to any other blocks in the flowgraph, grc will automatically delete those wire connections and reprint the error messages. So this must be related to the grc checks it makes whenever something changes in the flowgraph.

Any chance someone else could try passing messages around using virtual souce/sinks? Narrow this down to a real bug or my computer.

Rich

On Thu, Jan 21, 2016 at 4:41 AM, Martin Braun <address@hidden> wrote:

Have you tried disconnecting and re connecting the connections? Maybe ports were re numbered or something like that.

M

On 20 Jan 2016 23:50, "Richard Bell" <address@hidden> wrote:

I just opened up a flowgrah that used to work, where I send messages into virtual sources and sinks to get around the fllowgraph. Now, when I open the flowgraph, I get these messages in console and the wires connecting the messages to the virtual sources are deleted.

>>> Error: Connection between digital_probe_mpsk_snr_est_c_0_0(noise) and virtual_sink_1(in) could not be made.
    sink key "in" not in sink block keys
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/gnuradio/grc/base/FlowGraph.py", line 415, in import_data
    raise LookupError('sink key "%s" not in sink block keys' % sink_key)
LookupError: sink key "in" not in sink block keys

I updated to GNU Radio 3.7.9rc1 about a month ago but didn't notice this issue until now. I'm also using Ubuntu 14.04.

Rich

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After_Error.png
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Before_Error.png
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Error_Message.png
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