Failed to create view for 'ScatterView' from module 'ipyvolume' with model 'ScatterModel' from module 'ipyvolume' undefined

[PgLoLo]

Freshly installed ipyvolume gives an error Failed to create view for 'ScatterView' from module 'ipyvolume' with model 'ScatterModel' from module 'ipyvolume' undefined on ipv.plot in jupyter notebook on two different machines, on two different browsers (brave and firefox).

Python 3.10. Only three libraries were installed with pip into virtualenv : numpy, jupyter, ipyvolume. Conda environment:

Conda environment

name: test channels: - defaults dependencies: - _libgcc_mutex=0.1=main - _openmp_mutex=5.1=1_gnu - bzip2=1.0.8=h7b6447c_0 - ca-certificates=2023.01.10=h06a4308_0 - ld_impl_linux-64=2.38=h1181459_1 - libffi=3.4.2=h6a678d5_6 - libgcc-ng=11.2.0=h1234567_1 - libgomp=11.2.0=h1234567_1 - libstdcxx-ng=11.2.0=h1234567_1 - libuuid=1.41.5=h5eee18b_0 - ncurses=6.4=h6a678d5_0 - openssl=1.1.1t=h7f8727e_0 - python=3.10.11=h7a1cb2a_2 - readline=8.2=h5eee18b_0 - sqlite=3.41.2=h5eee18b_0 - tk=8.6.12=h1ccaba5_0 - xz=5.2.10=h5eee18b_1 - zlib=1.2.13=h5eee18b_0 - pip: - anyio==3.6.2 - argon2-cffi==21.3.0 - argon2-cffi-bindings==21.2.0 - arrow==1.2.3 - asttokens==2.2.1 - attrs==23.1.0 - backcall==0.2.0 - beautifulsoup4==4.12.2 - bleach==6.0.0 - bqplot==0.12.39 - certifi==2022.12.7 - cffi==1.15.1 - charset-normalizer==3.1.0 - comm==0.1.3 - contourpy==1.0.7 - cycler==0.11.0 - debugpy==1.6.7 - decorator==5.1.1 - defusedxml==0.7.1 - executing==1.2.0 - fastjsonschema==2.16.3 - fonttools==4.39.3 - fqdn==1.5.1 - idna==3.4 - ipydatawidgets==4.3.3 - ipykernel==6.22.0 - ipython==8.13.1 - ipython-genutils==0.2.0 - ipyvolume==0.6.1 - ipyvue==1.9.0 - ipyvuetify==1.8.10 - ipywebrtc==0.6.0 - ipywidgets==8.0.6 - isoduration==20.11.0 - jedi==0.18.2 - jinja2==3.1.2 - jsonpointer==2.3 - jsonschema==4.17.3 - jupyter==1.0.0 - jupyter-client==8.2.0 - jupyter-console==6.6.3 - jupyter-core==5.3.0 - jupyter-events==0.6.3 - jupyter-server==2.5.0 - jupyter-server-terminals==0.4.4 - jupyterlab-pygments==0.2.2 - jupyterlab-widgets==3.0.7 - kiwisolver==1.4.4 - markupsafe==2.1.2 - matplotlib==3.7.1 - matplotlib-inline==0.1.6 - mistune==2.0.5 - nbclassic==0.5.6 - nbclient==0.7.4 - nbconvert==7.3.1 - nbformat==5.8.0 - nest-asyncio==1.5.6 - notebook==6.5.4 - notebook-shim==0.2.3 - numpy==1.24.3 - packaging==23.1 - pandas==2.0.1 - pandocfilters==1.5.0 - parso==0.8.3 - pexpect==4.8.0 - pickleshare==0.7.5 - pillow==9.5.0 - pip==23.0.1 - platformdirs==3.5.0 - prometheus-client==0.16.0 - prompt-toolkit==3.0.38 - psutil==5.9.5 - ptyprocess==0.7.0 - pure-eval==0.2.2 - pycparser==2.21 - pygments==2.15.1 - pyparsing==3.0.9 - pyrsistent==0.19.3 - python-dateutil==2.8.2 - python-json-logger==2.0.7 - pythreejs==2.4.2 - pytz==2023.3 - pyyaml==6.0 - pyzmq==25.0.2 - qtconsole==5.4.2 - qtpy==2.3.1 - requests==2.29.0 - rfc3339-validator==0.1.4 - rfc3986-validator==0.1.1 - send2trash==1.8.2 - setuptools==66.0.0 - six==1.16.0 - sniffio==1.3.0 - soupsieve==2.4.1 - stack-data==0.6.2 - terminado==0.17.1 - tinycss2==1.2.1 - tornado==6.3.1 - traitlets==5.9.0 - traittypes==0.2.1 - tzdata==2023.3 - uri-template==1.2.0 - urllib3==1.26.15 - wcwidth==0.2.6 - webcolors==1.13 - webencodings==0.5.1 - websocket-client==1.5.1 - wheel==0.38.4 - widgetsnbextension==4.0.7 prefix: /home/gnovikov/data/miniconda3/envs/test

Reproduction example:

import numpy as np
import ipyvolume as ipv

xs = np.arange(10)
ipv.plot(xs, xs, xs)

Full error message inside jupyter notebook:

Failed to create view for 'ScatterView' from module 'ipyvolume' with model 'ScatterModel' from module 'ipyvolume'
undefined

Output in browser console:

Browser output

load_extensions Arguments(8) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64681 Session: kernel_created (4bb6af4e-d0f3-40ea-9c2c-99b50cc0388a) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63825 Starting WebSockets: ws://10.30.16.130:2390/api/kernels/30891a4f-517d-4a2a-96d1-a47f52ee0f28 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:59443 Loaded moment locale ru main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: bqplot/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: jupyter-datawidgets/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: jupyter-threejs/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: jupyter-vue/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: jupyter-vuetify/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: jupyter-webrtc/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: ipyvolume/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_connected (30891a4f-517d-4a2a-96d1-a47f52ee0f28) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_ready (30891a4f-517d-4a2a-96d1-a47f52ee0f28) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 Could not open comm -- Error: Class jupyter.widget not found in registry at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29239:28 at new Promise () at Object.load_class (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29224:16) at CommManager.comm_open (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63104:37) at i (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:2:88736) at Kernel._handle_iopub_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64600:20) at Kernel._finish_ws_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64379:29) at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64370:44 (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 Couldn't process kernel message WrappedError (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 Could not open comm -- Error: Class jupyter.widget not found in registry at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29239:28 at new Promise () at Object.load_class (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29224:16) at CommManager.comm_open (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63104:37) at i (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:2:88736) at Kernel._handle_iopub_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64600:20) at Kernel._finish_ws_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64379:29) at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64370:44 (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 Couldn't process kernel message WrappedError (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 Could not open comm -- Error: Class jupyter.widget not found in registry at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29239:28 at new Promise () at Object.load_class (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29224:16) at CommManager.comm_open (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63104:37) at i (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:2:88736) at Kernel._handle_iopub_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64600:20) at Kernel._finish_ws_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64379:29) at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64370:44 (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 Couldn't process kernel message WrappedError (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 Could not open comm -- Error: Class jupyter.widget not found in registry at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29239:28 at new Promise () at Object.load_class (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29224:16) at CommManager.comm_open (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63104:37) at i (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:2:88736) at Kernel._handle_iopub_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64600:20) at Kernel._finish_ws_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64379:29) at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64370:44 (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 Couldn't process kernel message WrappedError (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 Could not open comm -- Error: Class jupyter.widget not found in registry at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29239:28 at new Promise () at Object.load_class (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29224:16) at CommManager.comm_open (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63104:37) at i (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:2:88736) at Kernel._handle_iopub_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64600:20) at Kernel._finish_ws_message (main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64379:29) at main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64370:44 (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29275 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 Couldn't process kernel message WrappedError (anonymous) @ main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64371 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:28382 Loading extension: jupyter-js-widgets/extension main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:61408 Ignoring untrusted application/vnd.jupyter.widget-view+json output. main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_restarting (30891a4f-517d-4a2a-96d1-a47f52ee0f28) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_created (30891a4f-517d-4a2a-96d1-a47f52ee0f28) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63825 Starting WebSockets: ws://10.30.16.130:2390/api/kernels/30891a4f-517d-4a2a-96d1-a47f52ee0f28 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_connected (30891a4f-517d-4a2a-96d1-a47f52ee0f28) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_ready (30891a4f-517d-4a2a-96d1-a47f52ee0f28) extension.js?v=20230503091245:2 Could not create a view for model id 25650c61f1c444579a81aa5dac66ce54 (anonymous) @ extension.js?v=20230503091245:2 main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:64681 Session: kernel_killed (4bb6af4e-d0f3-40ea-9c2c-99b50cc0388a) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:63468 Kernel: kernel_dead (30891a4f-517d-4a2a-96d1-a47f52ee0f28) main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29076 Object main.min.js?v=ec0e2a68f0d65bebacb5e8fb0d530854588f06dd7eb807e709b36fe087299b4d53584c4bded892edb9a6553df806774496420c60423d4bf8b740c75689883311:29078 API request failed (0): error :2390/api/sessions/4bb6af4e-d0f3-40ea-9c2c-99b50cc0388a:1 Failed to load resource: net::ERR_CONNECTION_REFUSED :2390/static/base/images/favicon-busy-1.ico:1 Failed to load resource: net::ERR_CONNECTION_REFUSED

[maartenbreddels]

Could it be that you have a separate jupyter lab and kernel environment?