# Julia: Lorentz attractor and what to download?

**URL:** <https://discourse.julialang.org/t/julia-lorentz-attractor-and-what-to-download/25360>\
**Category:** New to Julia\
**Created:** [June 17, 2019, 10:10am UTC](https://discourse.julialang.org/t/julia-lorentz-attractor-and-what-to-download/25360 "2019-06-17T10:10:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![P\_ter](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/p_ter/32/9369_2.png) [@P\_ter](https://discourse.julialang.org/u/P_ter)\
**Post date:** [June 17, 2019, 10:10am UTC](https://discourse.julialang.org/t/julia-lorentz-attractor-and-what-to-download/25360/1 "2019-06-17T10:10:39Z")

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Hello,  
I downloaded Julia via Debian Stretch synaptic. I wanted to see some graphics from [Juliaplots.org](http://Juliaplots.org). Did not work. Got some red message to download from [julialang.org](http://julialang.org). Ok. I removed Julia via synaptic. I downloaded directly.  
I was impressed by the beauty of the lorenz attractor. Copied the code. Did not work. It seems that I have to download this and that package.  
Can anyone tell me what I have to download that the code of the Lorenzattractor works? I get this for the moment:  
ERROR: IOError: could not spawn `ffmpeg -v 0 -i /tmp/tmpD0UDch/%06d.png -vf palettegen=stats_mode=diff -y /tmp/tmpD0UDch/palette.bmp`: no such file or directory (ENOENT)

I just want to enjoy that Julia works. But it ain’t made easy.  
with friendly greetings,  
P\_ter (a hole in my bucket)

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**Author:** ![sgjanssens](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@sgjanssens](https://discourse.julialang.org/u/sgjanssens)\
**Post date:** [June 17, 2019, 10:36am UTC](https://discourse.julialang.org/t/julia-lorentz-attractor-and-what-to-download/25360/2 "2019-06-17T10:36:26Z")

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It’s good that you installed directly from the julia site instead of your package manager.

It looks like you may not have `ffmpeg` installed on your system. As a first step, I would check this on a terminal and synaptic.

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**Author:** ![P\_ter](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/p_ter/32/9369_2.png) [@P\_ter](https://discourse.julialang.org/u/P_ter)\
**Post date:** [June 17, 2019, 12:54pm UTC](https://discourse.julialang.org/t/julia-lorentz-attractor-and-what-to-download/25360/3 "2019-06-17T12:54:20Z")

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Hello S.G. Janssens,

Thanks.

I installed all via synaptic what had ffmpeg in it. The Julia program was accepted. I went to the /tmp directory, clicked - and it worked. Still looking at it.

Wonderful.

P\_ter