Bokeh: BokehJS was loaded multiple times but one version failed to initialize.

[tomascsantos]

Hi team, thanks for your hard work. If possible, can we put a high priority on this fix? It's quite damaging to user experience.

ALL software version info

(this library, plus any other relevant software, e.g. bokeh, python, notebook, OS, browser, etc should be added within the dropdown below.)

Software Version Info

acryl-datahub==0.10.5.5
aiohappyeyeballs==2.4.0
aiohttp==3.10.5
aiosignal==1.3.1
alembic==1.13.2
ansi2html==1.9.2
anyio==4.4.0
argon2-cffi==23.1.0
argon2-cffi-bindings==21.2.0
arrow==1.3.0
asttokens==2.4.1
async-generator==1.10
async-lru==2.0.4
attrs==24.2.0
autograd==1.7.0
autograd-gamma==0.5.0
avro==1.10.2
avro-gen3==0.7.10
awscli==1.33.27
babel==2.16.0
backports.tarfile==1.2.0
beautifulsoup4==4.12.3
black==24.8.0
bleach==6.1.0
blinker==1.8.2
bokeh==3.4.2
bokehtools==0.46.2
boto3==1.34.76
botocore==1.34.145
bouncer-client==0.4.1
cached-property==1.5.2
certifi==2024.7.4
certipy==0.1.3
cffi==1.17.0
charset-normalizer==3.3.2
click==8.1.7
click-default-group==1.2.4
click-spinner==0.1.10
cloudpickle==3.0.0
colorama==0.4.6
colorcet==3.0.1
comm==0.2.2
contourpy==1.3.0
cryptography==43.0.0
cycler==0.12.1
dash==2.17.1
dash-core-components==2.0.0
dash-html-components==2.0.0
dash-table==5.0.0
dask==2024.8.1
datashader==0.16.3
datatank-client==2.1.10.post12049
dataworks-common==2.1.10.post12049
debugpy==1.8.5
decorator==5.1.1
defusedxml==0.7.1
Deprecated==1.2.14
directives-client==0.4.4
docker==7.1.0
docutils==0.16
entrypoints==0.4
executing==2.0.1
expandvars==0.12.0
fastjsonschema==2.20.0
Flask==3.0.3
fonttools==4.53.1
formulaic==1.0.2
fqdn==1.5.1
frozenlist==1.4.1
fsspec==2024.6.1
future==1.0.0
gitdb==4.0.11
GitPython==3.1.43
greenlet==3.0.3
h11==0.14.0
holoviews==1.19.0
httpcore==1.0.5
httpx==0.27.2
humanfriendly==10.0
hvplot==0.10.0
idna==3.8
ijson==3.3.0
importlib-metadata==4.13.0
interface-meta==1.3.0
ipykernel==6.29.5
ipython==8.18.0
ipython-genutils==0.2.0
ipywidgets==8.1.5
isoduration==20.11.0
isort==5.13.2
itsdangerous==2.2.0
jaraco.classes==3.4.0
jaraco.context==6.0.1
jaraco.functools==4.0.2
jedi==0.19.1
jeepney==0.8.0
Jinja2==3.1.4
jira==3.2.0
jmespath==1.0.1
json5==0.9.25
jsonpointer==3.0.0
jsonref==1.1.0
jsonschema==4.17.3
jsonschema-specifications==2023.12.1
jupyter==1.0.0
jupyter-console==6.6.3
jupyter-dash==0.4.2
jupyter-events==0.10.0
jupyter-lsp==2.2.5
jupyter-resource-usage==1.1.0
jupyter-server-mathjax==0.2.6
jupyter-telemetry==0.1.0
jupyter_bokeh==4.0.5
jupyter_client==8.6.2
jupyter_core==5.7.2
jupyter_server==2.14.2
jupyter_server_proxy==4.3.0
jupyter_server_terminals==0.5.3
jupyterhub==4.1.4
jupyterlab==4.2.5
jupyterlab-vim==4.1.3
jupyterlab_code_formatter==3.0.2
jupyterlab_git==0.50.1
jupyterlab_pygments==0.3.0
jupyterlab_server==2.27.3
jupyterlab_templates==0.5.2
jupyterlab_widgets==3.0.13
keyring==25.3.0
kiwisolver==1.4.5
lckr_jupyterlab_variableinspector==3.2.1
lifelines==0.29.0
linkify-it-py==2.0.3
llvmlite==0.43.0
locket==1.0.0
Mako==1.3.5
Markdown==3.3.7
markdown-it-py==3.0.0
MarkupSafe==2.1.5
matplotlib==3.9.2
matplotlib-inline==0.1.7
mdit-py-plugins==0.4.1
mdurl==0.1.2
mistune==3.0.2
mixpanel==4.10.1
more-itertools==10.4.0
multidict==6.0.5
multipledispatch==1.0.0
mypy-extensions==1.0.0
nbclassic==1.1.0
nbclient==0.10.0
nbconvert==7.16.4
nbdime==4.0.1
nbformat==5.10.4
nbgitpuller==1.2.1
nest-asyncio==1.6.0
notebook==7.2.2
notebook_shim==0.2.4
numba==0.60.0
numpy==1.26.4
oauthlib==3.2.2
overrides==7.7.0
packaging==24.1
pamela==1.2.0
pandas==2.1.4
pandocfilters==1.5.1
panel==1.4.4
param==2.1.1
parso==0.8.4
partd==1.4.2
pathspec==0.12.1
pexpect==4.9.0
pillow==10.4.0
platformdirs==4.2.2
plotly==5.23.0
progressbar2==4.5.0
prometheus_client==0.20.0
prompt-toolkit==3.0.38
psutil==5.9.8
psycopg2-binary==2.9.9
ptyprocess==0.7.0
pure_eval==0.2.3
pyarrow==15.0.2
pyasn1==0.6.0
pycparser==2.22
pyct==0.5.0
pydantic==1.10.18
Pygments==2.18.0
PyHive==0.7.0
PyJWT==2.9.0
pymssql==2.3.0
PyMySQL==1.1.1
pyodbc==5.1.0
pyOpenSSL==24.2.1
pyparsing==3.1.4
pyrsistent==0.20.0
pyspork==2.24.0
python-dateutil==2.9.0.post0
python-json-logger==2.0.7
python-utils==3.8.2
pytz==2024.1
pyviz_comms==3.0.3
PyYAML==6.0.1
pyzmq==26.2.0
qtconsole==5.5.2
QtPy==2.4.1
ratelimiter==1.2.0.post0
redis==3.5.3
referencing==0.35.1
requests==2.32.3
requests-file==2.1.0
requests-oauthlib==2.0.0
requests-toolbelt==1.0.0
retrying==1.3.4
rfc3339-validator==0.1.4
rfc3986-validator==0.1.1
rpds-py==0.20.0
rsa==4.7.2
ruamel.yaml==0.17.40
ruamel.yaml.clib==0.2.8
ruff==0.6.2
s3transfer==0.10.2
scipy==1.13.0
SecretStorage==3.3.3
Send2Trash==1.8.3
sentry-sdk==2.13.0
simpervisor==1.0.0
six==1.16.0
smmap==5.0.1
sniffio==1.3.1
soupsieve==2.6
SQLAlchemy==1.4.52
sqlparse==0.4.4
stack-data==0.6.3
structlog==22.1.0
tabulate==0.9.0
tenacity==9.0.0
termcolor==2.4.0
terminado==0.18.1
tesladex-client==0.9.0
tinycss2==1.3.0
toml==0.10.2
toolz==0.12.1
tornado==6.4.1
tqdm==4.66.4
traitlets==5.14.3
types-python-dateutil==2.9.0.20240821
typing-inspect==0.9.0
typing_extensions==4.5.0
tzdata==2024.1
tzlocal==5.2
uc-micro-py==1.0.3
uri-template==1.3.0
urllib3==1.26.19
wcwidth==0.2.13
webcolors==24.8.0
webencodings==0.5.1
websocket-client==1.8.0
Werkzeug==3.0.4
widgetsnbextension==4.0.13
wrapt==1.16.0
xarray==2024.7.0
xyzservices==2024.6.0
yapf==0.32.0
yarl==1.9.4
zipp==3.20.1

Description of expected behavior and the observed behavior

I should be able to use panel in 2 notebooks simultaneously, but if I save my changes and reload the page, the error will show.

Complete, minimal, self-contained example code that reproduces the issue

Steps to reproduce:

1. create 2 notebooks with the following content

# notebook 1
import panel as pn
pn.extension()
pn.Column('hi')

# notebook 2 (open in another jupyterlab tab)
import panel as pn
pn.extension()
pn.Column('hi')

2. Run both notebooks
3. Save both notebooks
4. Reload your page
5. Try to run either of the notebooks and you'll see the error.

Stack traceback and/or browser JavaScript console output

(Ignore 'set_log_level` error. I think it's unrelated.)

[philippjfr]

Really, really, appreciate this reproducer. Looking now.

[philippjfr]

Found the culprit, I owe you huge amounts of gratitude for finding such a simple reproducer.

[techanfa]

Thanks for the quick fix! Do you have any timeline for release?

[philippjfr]

Was hoping for tonight, but it's gotten late in Europe and releasing last thing on a Friday is generally a poor idea 😄 So first thing Monday.