# GQRX Output 1 Not Connected Internally
**URL:** https://discourse.myriadrf.org/t/gqrx-output-1-not-connected-internally/2967
**Category:** Uncategorized
**Created:** [28 June 2018 22:06 UTC](https://discourse.myriadrf.org/t/gqrx-output-1-not-connected-internally/2967 "2018-06-28T22:06:18Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Ken98045](https://discourse.myriadrf.org/u/Ken98045)
#### Post date: [28 June 2018 22:06 UTC](https://discourse.myriadrf.org/t/gqrx-output-1-not-connected-internally/2967/1 "2018-06-28T22:06:18Z")
I did a new Ubuntu 16.04 install with a new lime gqrx install. I’m getting the following error at gqrx radio startup:
terminate called after throwing an instance of ‘std::runtime\_error’
what(): In hierarchical block source\_impl, output 1 is not connected internally
Aborted (core dumped)
Has anyone seen this? It seems likely to be audio output related, but there really isn’t enough info to tell for sure. I guess I’m regretting all the semi-cryptic debug outputs I’ve coded over the years.
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### Author:  [@Pavel](https://discourse.myriadrf.org/u/Pavel)
#### Post date: [2 July 2018 13:39 UTC](https://discourse.myriadrf.org/t/gqrx-output-1-not-connected-internally/2967/2 "2018-07-02T13:39:01Z")
Hi,
this is a problem with same gnuradio block. It is reporting different signature than expected (described). What I/O device are you using? Is it happening with another one? I`d try to remove the gqrx configuration (~/.config/gqrx) and reinstalling all the related software.
P.
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### Author:  [@Ken98045](https://discourse.myriadrf.org/u/Ken98045)
#### Post date: [2 July 2018 16:58 UTC](https://discourse.myriadrf.org/t/gqrx-output-1-not-connected-internally/2967/3 "2018-07-02T16:58:56Z")
The output is the default audio device, the speaker. I let GQRX just go with the default, but I have tried changing it to see if that made a difference. It didn’t.
I installed everything GQRX/Soapy related using the following link. [Howto install: Gqrx Gnuradio Soapysdr Pothosware Limesuite on ubuntu](https://discourse.myriadrf.org/t/howto-install-gqrx-gnuradio-soapysdr-pothosware-limesuite-on-ubuntu/2402). I have been successful using these steps on another machine. However, it is possible that those steps are out of date by now.
I’ll try deleting the config file when I have a chance to re-boot into Linux. I’m stuck in
Windows for a day to two due to other projects.
Thanks for the reply!