# Gr-limesdr source block stops outputting samples when FIFO is empty
**URL:** https://discourse.myriadrf.org/t/gr-limesdr-source-block-stops-outputting-samples-when-fifo-is-empty/3392
**Category:** LimeSDR
**Created:** [27 September 2018 15:32 UTC](https://discourse.myriadrf.org/t/gr-limesdr-source-block-stops-outputting-samples-when-fifo-is-empty/3392 "2018-09-27T15:32:39Z")
**Posts on this page:** 1
**Showing post:** 17
### Author:  [@maschi01](https://discourse.myriadrf.org/u/maschi01)
#### Post date: [2 October 2018 11:17 UTC](https://discourse.myriadrf.org/t/gr-limesdr-source-block-stops-outputting-samples-when-fifo-is-empty/3392/17 "2018-10-02T11:17:09Z")
I’ve set up my system with 16.04. So far most things work, unfortunately gr-limesdr shows the same error as here:
> [@LimeSDR mini and gnuradio module missing attribute](https://discourse.myriadrf.org/t/limesdr-mini-and-gnuradio-module-missing-attribute/2971):
>
> Hello, Does anybody have any idea why I am getting this: self.limesdr\_source\_0\_0 = limesdr.source(‘1D393786C41058’, AttributeError: ‘module’ object has no attribute ‘source’ when I try to execute all of the gr-limesdr module examples ?
The solution you proposed there @Osvald did not work for me. I’ve also tried to manually move all attributes in the .py file into one line, in case python doesn’t like the line breaks, as suggested here
>
with no success.
Not sure how to proceed now.
I’ve installed gnuradio via apt-get, the version is 3.7.9
Python is on version python3.5 (python --version yields 2.7.12)
EDIT:
This did it:
>
I’ve ran “sudo apt-get install python-swig” before, I thought that would be enough.
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