Plots not rendering in IJulia / Julia 1.12.2 #518

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1. rand5 commented on Mar 26, 2026

   

   rand5

   on Mar 26, 2026

   Last edited by rand5

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   I tried to do a clean install of Julia and have not successfully gotten PlotlyJS to work inside a jupyter notebook. These are my install notes:

   1. installed Julia and WebIO.
      WebIO install ran smoothly apart from the following:

   1 dependency had output during precompilation:
   WebSockets
   -WARNING: Imported binding Logging.termlength was undeclared at import time during import to WebSockets.
   -WARNING: Imported binding Logging.Showvalue was undeclared at import time during import to WebSockets
   

   Ignored the warning

   2. Installed PlotlyJS, Conda, then IJulia, in that order. I have always previously started a notebook by calling

   using IJulia
   notebook()
   

   Since I dont have python, the first time I did this I opted for the miniconda installation as recommended in the docs, then called Pkg.build("IJulia")

   3. Following the IJulia install notes, I then ran

   import Conda
   Conda.SCRIPTDIR
   

   to get the install location of jupyter, and confirmed they were in my PATH (they were, so didn't do a computer restart). Restarted Julia and called `Pkg.build("IJulia")'

   4. Ran

   using IJulia
   notebook()
   

   then, within the notebook called using PlotlyJS. Got Warning that The WebIO Jupyter extension was not detected. Also tried

   fig=plot()
   display(fig.plot)
   

   as suggested here, but the notebook hangs on the call to fig = plot().

   5. Revisited the WebIO notes on Jupyter installation and ran:

   using Conda
   Conda.pip_interop(true)
   Conda.pip("install","webio_jupyter_extension")
   

   which warned WARNING conda.cli.condarc:set_key(484): Key pip_interop_enabled is an alias of prefix_data_interoperability; setting value with latter
   then errored
   ERROR: pip_interop is not enabled Use Conda.pip_interop(true; [env::Environment=ROOTENV]) to enable which seems to be an outstanding issue discussed here.

   6. I then went to the trouble-shooting page of WebIO. There are instructions for checking if webio_jupyter_extension is installed but not working for the classic notebook and for jupyterlab, but not for a regular(?) IJulia notebook. According to the IJulia page, notebook, nbclassic and jupyterlab are three distinct things and not clear why WebIO only addressed later 2 of the 3. I tried to manually install the Jupyter notebook extension by running (in the julia REPL)

   using WebIO
   WebIO.install_jupyter_nbextension()
   

   which errored, ERROR: The WebIO Jupyter extension must be installed using Python or Conda.

   I am now at a loss as to what to do:

   • Do I need to downgrade Julia to get rid of the WebSockets warning when I installed WebIO?
   • Do I need to switch the order in which the packages are installed?
   • Isn't the whole point of doing the miniconda installation during the initial call to notebook() so that I don't have to directly download Python?
   • Do I need to wait for pip_interop needs to be replaced with prefix_data_interoperability JuliaPy/Conda.jl#265 to be resolved?

   Any help is greatly appreciated!

   Version Info

   Julia Version 1.12.5
   Commit 5fe89b8ddc (2026-02-09 16:05 UTC)
   Build Info:
     Official https://julialang.org release
   Platform Info:
     OS: Windows (x86_64-w64-mingw32)
     CPU: 8 × Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz
     WORD_SIZE: 64
     LLVM: libLLVM-18.1.7 (ORCJIT, skylake)
     GC: Built with stock GC
   Threads: 1 default, 1 interactive, 1 GC (on 8 virtual cores)
   

   Status

   C:\Users\Monali\.julia\environments\v1.12\Project.toml
     [8f4d0f93] Conda v1.10.3
     [7073ff75] IJulia v1.34.4
     [f0f68f2c] PlotlyJS v0.18.17
     [0f1e0344] WebIO v0.8.21
   
2. jjstickel commented on Jun 8, 2026

   

   jjstickel

   on Jun 8, 2026

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   as suggested here, but the notebook hangs on the call to fig = plot()

   I can confirm that fig = plot() now complete hangs the kernel. I'm on MacOS, Julia 1.12.6, PlotlyJS v0.18.18.