# Cannot use ORCA, HTTP errors

**URL:** <https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683>\
**Category:** New to Julia\
**Created:** [March 29, 2020, 5:18pm UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683 "2020-03-29T17:18:27Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![badmin](https://avatars.discourse-cdn.com/v4/letter/b/c67d28/32.png) [@badmin](https://discourse.julialang.org/u/badmin)\
**Post date:** [March 29, 2020, 5:18pm UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/1 "2020-03-29T17:18:27Z")

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Hi,

I am having problems using ORCA today (i have it working fine on several other machines).  
When trying “using ORCA” i get the following:  
 ![Image20200329191440](https://global.discourse-cdn.com/julialang/original/3X/3/6/36f4045190a6d1d3de2f7d7d805aa3f9f61870af.png)  
And when trying Pkg.build(“ORCA”) i get this:

 ![Image20200329191149](https://global.discourse-cdn.com/julialang/original/3X/a/8/a8860cc410b649429100980b5fa2a8ff556d061b.png)  
 ![Image20200329191153](https://global.discourse-cdn.com/julialang/original/3X/1/b/1b3abbf3a4532c34728e587b0c614550613c6b12.png)  
The HTTP errors in the beginning led me to try disabling firewalls and such, but this did not help. When i try to access the file being referenced in the error message ([https://conda.anaconda.org/plotly/win-64/current\_repodata.json](https://conda.anaconda.org/plotly/win-64/current_repodata.json)) using Chrome, it is indeed not found on the server.  
However i am not sure if this is the root cause.  
I have also tried to remove the package and reinstall everything from scratch (conda etc).

Does anyone have any advice on how to resolve this?

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**Author:** ![micampbell](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/micampbell/32/43763_2.png) [@micampbell](https://discourse.julialang.org/u/micampbell)\
**Post date:** [March 31, 2020, 7:04pm UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/2 "2020-03-31T19:04:41Z")

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I’m stuck at the same place. I had Anaconda installed and thought that was the problem. I uninstalled that, all the pythons, atom, and julia - but reinstalling didn’t fix.

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**Author:** ![micampbell](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/micampbell/32/43763_2.png) [@micampbell](https://discourse.julialang.org/u/micampbell)\
**Post date:** [April 1, 2020, 12:02am UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/3 "2020-04-01T00:02:52Z")

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I did manage to install ORCA from the installer ([Release v1.3.1 · plotly/orca · GitHub](https://github.com/plotly/orca/releases/tag/v1.3.1)), then I created a small paths.jl file in C:\Users\<username\>.julia\packages\ORCA\fiEmb\deps  
that simply had one line: orca\_cmd = “orca”  
(after adding orca to the path)  
this got me through this “install” error but I haven’t gotten a plot to show up correctly

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**Author:** ![badmin](https://avatars.discourse-cdn.com/v4/letter/b/c67d28/32.png) [@badmin](https://discourse.julialang.org/u/badmin)\
**Post date:** [April 2, 2020, 1:59pm UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/4 "2020-04-02T13:59:45Z")

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We resolved this problem by performing an update to Miktex (not sure if this was a root cause or not) and then loosening the firewall settings.

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**Author:** ![TheLateKronos](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/thelatekronos/32/12824_2.png) [@TheLateKronos](https://discourse.julialang.org/u/TheLateKronos)\
**Post date:** [April 27, 2020, 10:07am UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/5 "2020-04-27T10:07:25Z")

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I am still having this exact same issue, and have had for some time now. I have done a complete reinstall of julia and atom as well, but nothing have helped. Any ideas?

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**Author:** ![tiago](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tiago/32/22567_2.png) [@tiago](https://discourse.julialang.org/u/tiago)\
**Post date:** [May 26, 2020, 10:39am UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/6 "2020-05-26T10:39:17Z")

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Hello, I have the same issue!

I recently reinstaled Atom and Julia in my computer and I have the same problem. And I’m having troubles to plot surfaces using the plotly background (I’m using firefox)  
@badmin what did you mean by updating Miktex? Should I have to do something in my computer?

Cheers!

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**Author:** ![nonewsman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nonewsman/32/16974_2.png) [@nonewsman](https://discourse.julialang.org/u/nonewsman)\
**Post date:** [August 21, 2020, 2:14am UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/7 "2020-08-21T02:14:57Z")

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I had the same issue. Here is what I did  
installed  
`conda install -y plotly plotly-orca’  
from windows powershell and it worked without errors.  
I found the orca .exe installed in the path:  
C:\Users\jwa2044.julia\conda\3\orca\_app  
Set the user environment variable to include this in the path  
Then did  
build “ORCA” in the julia pkg prompt  
It worked.  
Then the compilation went smoothly.

Natraj

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**Author:** ![sglyon](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/sglyon/32/67_2.png) [@sglyon](https://discourse.julialang.org/u/sglyon)\
**Post date:** [August 26, 2020, 1:45pm UTC](https://discourse.julialang.org/t/cannot-use-orca-http-errors/36683/8 "2020-08-26T13:45:03Z")

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ORCA.jl has been deprecated – see [PlotlyJS fails due to ORCA - #11 by sglyon](https://discourse.julialang.org/t/plotlyjs-fails-due-to-orca/45092/11) for more information