Julia kernel not found (or how to configure the path to Julia)

[roland-KA]

I've just installed Quarto and the Quarto-VS-plugin and wanted to render the example document walkthrough.qmd.

Rendering didn't succeed, because Quarto cannot find the Julia kernel. It reports the following error:

Starting julia-1.6 kernel...ERROR: 

[Errno 2] No such file or directory: '/Applications/Julia-1.6.app/Contents/Resources/julia/bin/julia'

And yes, Quarto is right, on that path there is no Julia installation. I'm using juliaup to manage my Julia installations. Therefore Julia is installed in /opt/homebrew/Cellar/juliaup/1.8.16/bin.

So how can I tell Quarto to look there for Julia?

And why does Quarto look for a 1.6-version of Julia? Is it capable of using the current 1.8.x-version?

[mcanouil]

Quarto is looking for Jupyter in PATH, then it is up to Jupyter to find your Julia install.
Did you follow https://quarto.org/docs/computations/julia.html?

What's the output of quarto check jupyter?

[roland-KA]

The output of quarto check jupyter is:

[✓] Checking Python 3 installation....OK
      Version: 3.9.7 (Conda)
      Path: /Users/roland/opt/anaconda3/bin/python
      Jupyter: 4.8.1
      Kernels: julia-1.6, python3

[✓] Checking Jupyter engine render....OK

After installing IJulia in my 1.8 default environment, it seems also to see the 1.8-kernel:

[✓] Checking Python 3 installation....OK
      Version: 3.9.7 (Conda)
      Path: /Users/roland/opt/anaconda3/bin/python
      Jupyter: 4.8.1
      Kernels: julia-1.6, julia-1.8, python3

[✓] Checking Jupyter engine render....OK

But Quarto still cannot find Julia.

I've also had a look at my PATH-variable. It has /Applications/Julia-1.6.app/Contents/Resources/julia/bin included, where Quarto is looking for Julia, but doesn't find it because it's not there.

So I deleted that path from PATH. But Quarto still tries to look there for Julia.

[mcanouil]

Did you specify the "right" kernel and explicitly using jupyter: julia-1.8 in your yaml header?

[roland-KA]

Ha, that's it! 😊👍 ... now it works. Thanks a lot!