hnn-gui won't launch due to javascript error after clean install

[ntolley]

Installing hnn-gui in a clean environment produces the following error when trying to launch (tested on both mac and linux):

Failed to load model class 'GridBoxModel' from module '@jupyter-widgets/controls'
loadClass@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:458:117211
loadClass@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:472:57590
loadModelClass@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:458:114981
_make_model@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:458:111788
new_model@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:458:109385
_loadFromKernel/<@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:458:110659
_loadFromKernel@http://localhost:8866/voila/templates/lab/static/voila.js?v=8db1cadbfba43a6dfc2d64128318e696bcb26b1783db1b991faf7404d438cd53200b6c434c4897064c090b68aa1151cd96c6dab50c3e138553365e6b30889172:458:110549

Not sure where the problem is yet. I've played around with down/upgrading voila and ipywidgets with no success yet.

@chenghuzi any ideas?

[chenghuzi]

Could you tell me the specific version number combinations of voila and ipywidgets you tried?

[ntolley]

Just the versions immediately prior to whatever was installed on a fresh conda environment!

[jasmainak]

@ntolley I think the exact version numbers will help @chenghuzi debug ... if it's possible to share

[ntolley]

@jasmainak @chenghuzi apologies but I don't remember the combinations top of my head (was quickly trying random older versions on a different computer). It wasn't a very thorough search, I just wanted to confirm that it wasn't a problem that was introduced in the most recent releases of voila or ipywidgets.

[ntolley]

In any case here is what is installed by pip on a clean conda environment:

anyio==3.6.2
argon2-cffi==21.3.0
argon2-cffi-bindings==21.2.0
asttokens==2.2.1
attrs==22.2.0
Babel==2.11.0
backcall==0.2.0
beautifulsoup4==4.11.1
bleach==5.0.1
certifi @ file:///croot/certifi_1671487769961/work/certifi
cffi==1.15.1
charset-normalizer==3.0.1
comm==0.1.2
contourpy==1.0.6
cycler==0.11.0
debugpy==1.6.5
decorator==5.1.1
defusedxml==0.7.1
entrypoints==0.4
executing==1.2.0
fastjsonschema==2.16.2
fonttools==4.38.0
-e git+https://github.com/ntolley/hnn-core@01f4bce769fb6cf814c7a96c118d1d021e294cab#egg=hnn_core
idna==3.4
importlib-metadata==6.0.0
importlib-resources==5.10.2
ipykernel==6.20.1
ipympl==0.8.8
ipython==8.8.0
ipython-genutils==0.2.0
ipywidgets==7.6.5
jedi==0.18.2
Jinja2==3.1.2
json5==0.9.11
jsonschema==4.17.3
jupyter-server==1.23.5
jupyter_client==7.4.1
jupyter_core==5.1.3
jupyterlab==3.4.0
jupyterlab-pygments==0.2.2
jupyterlab-widgets==3.0.0
jupyterlab_server==2.18.0
kiwisolver==1.4.4
MarkupSafe==2.1.1
matplotlib==3.6.3
matplotlib-inline==0.1.6
mistune==2.0.4
nbclassic==0.4.8
nbclient==0.7.2
nbconvert==7.2.7
nbformat==5.7.3
nest-asyncio==1.5.6
NEURON==8.2.2
nlopt==2.7.1
notebook==6.5.2
notebook_shim==0.2.2
numpy==1.24.1
packaging==23.0
pandocfilters==1.5.0
parso==0.8.3
pexpect==4.8.0
pickleshare==0.7.5
Pillow==9.4.0
pkgutil_resolve_name==1.3.10
platformdirs==2.6.2
prometheus-client==0.15.0
prompt-toolkit==3.0.36
psutil==5.9.4
ptyprocess==0.7.0
pure-eval==0.2.2
pycparser==2.21
Pygments==2.14.0
PyOpenGL==3.1.6
pyparsing==3.0.9
PyQt5==5.15.7
PyQt5-Qt5==5.15.2
PyQt5-sip==12.11.0
pyqtgraph==0.12.4
pyrsistent==0.19.3
python-dateutil==2.8.2
pytz==2022.7
pyzmq==25.0.0
requests==2.28.2
scipy==1.10.0
Send2Trash==1.8.0
six==1.16.0
sniffio==1.3.0
soupsieve==2.3.2.post1
stack-data==0.6.2
terminado==0.17.1
tinycss2==1.2.1
tomli==2.0.1
tornado==6.2
traitlets==5.8.1
urllib3==1.26.14
voila==0.4.0
wcwidth==0.2.5
webencodings==0.5.1
websocket-client==1.4.2
websockets==10.4
widgetsnbextension==3.5.2
zipp==3.11.0

[ntolley]

Update: I was wrong! voila was actually the culprit.

Downgrading to voila==0.3.6 fixes the issue. Unfortunately this means that we need to pin both ipywidgets and voila to be less than the latest versions for the GUI to work with a PyPI release

[ntolley]

Relevant discussion of the issue:

voila-dashboards/voila#1271