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 <[email protected]>
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 <[email protected]>
> 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" <[email protected]> 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
>>>
>>> _______________________________________________
>>> Discuss-gnuradio mailing list
>>> [email protected]
>>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>
>>>
>
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