Hello,
I have written a DASH app (with debug = False), and when I run it I get an “Internal Server Error”. In my console I get the more verbose error below (“Verbose error”). It seems to be an issue with DASH rather than my code (seems like dash/plotly is trying to import plotly.io.json and it’s not there?), so I am not posting my app here (unless someone thinks it will be useful, in which case I am more than happy to!).
None of my callbacks have state and my import is as described here (from dash import Dash, callback, html, dcc, dash_table, Input, Output, State, MATCH, ALL), so I don’t see any issues arising from DASH v2. I am running in a conda environment (packages listed below via conda list from within my activated conda env, “Packages”). I will try re-installing DASH/plotly, but thought I would check if there were any known issues of this nature whilst I do that.
Thanks!
Tim
Verbose error
* Serving Flask app 'tui_dynamic_score_app'
* Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
* Running on http://127.0.0.1:8050
Press CTRL+C to quit
[2023-08-19 18:50:49,489] ERROR in app: Exception on / [GET]
Traceback (most recent call last):
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 2525, in wsgi_app
response = self.full_dispatch_request()
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 1822, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 1820, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 1796, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\dash\dash.py", line 923, in index
config = self._generate_config_html()
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\dash\dash.py", line 857, in _generate_config_html
return f'<script id="_dash-config" type="application/json">{to_json(self._config())}</script>'
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\dash\_utils.py", line 21, in to_json
from plotly.io.json import to_json_plotly
ModuleNotFoundError: No module named 'plotly.io.json'
127.0.0.1 - - [19/Aug/2023 18:50:49] "GET / HTTP/1.1" 500 -
[2023-08-19 18:50:49,736] ERROR in app: Exception on /favicon.ico [GET]
Traceback (most recent call last):
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 2525, in wsgi_app
response = self.full_dispatch_request()
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 1822, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 1820, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\flask\app.py", line 1796, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\dash\dash.py", line 923, in index
config = self._generate_config_html()
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\dash\dash.py", line 857, in _generate_config_html
return f'<script id="_dash-config" type="application/json">{to_json(self._config())}</script>'
File "C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env\lib\site-packages\dash\_utils.py", line 21, in to_json
from plotly.io.json import to_json_plotly
ModuleNotFoundError: No module named 'plotly.io.json'
127.0.0.1 - - [19/Aug/2023 18:50:49] "GET /favicon.ico HTTP/1.1" 500 -
Packages
# packages in environment at C:\Users\u03132tk\AppData\Local\anaconda3\envs\pip_env:
#
# Name Version Build Channel
alabaster 0.7.12 pyhd3eb1b0_0
appdirs 1.4.4 pyhd3eb1b0_0
argcomplete 3.1.1 pypi_0 pypi
argh 0.28.1 pypi_0 pypi
arrow 1.2.3 py310haa95532_1
astroid 2.14.2 py310haa95532_0
asttokens 2.0.5 pyhd3eb1b0_0
atomicwrites 1.4.0 py_0
attrs 22.1.0 py310haa95532_0
autopep8 1.6.0 pyhd3eb1b0_1
babel 2.11.0 py310haa95532_0
backcall 0.2.0 pyhd3eb1b0_0
bcrypt 3.2.0 py310h2bbff1b_1
beautifulsoup4 4.12.2 py310haa95532_0
binaryornot 0.4.4 pyhd3eb1b0_1
biopython 1.80 py310h8d17308_0 conda-forge
black 23.3.0 py310haa95532_0
blas 1.0 mkl
bleach 4.1.0 pyhd3eb1b0_0
bottleneck 1.3.5 py310h9128911_0
brain-isotopic-distribution 1.5.14 pypi_0 pypi
brotli 1.0.9 h2bbff1b_7
brotli-bin 1.0.9 h2bbff1b_7
brotlipy 0.7.0 py310h2bbff1b_1002
bzip2 1.0.8 he774522_0
ca-certificates 2023.05.30 haa95532_0
cblaster 1.3.18 pypi_0 pypi
certifi 2023.7.22 py310haa95532_0
cffi 1.15.1 py310h2bbff1b_3
chardet 4.0.0 py310haa95532_1003
charset-normalizer 2.0.4 pyhd3eb1b0_0
click 8.0.4 py310haa95532_0
clinker 0.0.28 pypi_0 pypi
cloudpickle 2.2.1 py310haa95532_0
colorama 0.4.6 py310haa95532_0
comm 0.1.2 py310haa95532_0
contourpy 1.0.5 py310h59b6b97_0
cookiecutter 1.7.3 pyhd3eb1b0_0
cryptography 41.0.2 py310h31511bf_0
cycler 0.11.0 pyhd3eb1b0_0
dash 2.10.2 pyhd8ed1ab_0 conda-forge
dash_cytoscape 0.2.0 pyhd8ed1ab_1 conda-forge
debugpy 1.6.7 py310hd77b12b_0
decorator 5.1.1 pyhd3eb1b0_0
defusedxml 0.7.1 pyhd3eb1b0_0
diff-match-patch 20200713 pyhd3eb1b0_0
dill 0.3.6 py310haa95532_0
disjoint-set 0.7.4 pypi_0 pypi
docstring-to-markdown 0.11 py310haa95532_0
docutils 0.18.1 py310haa95532_3
entrypoints 0.4 py310haa95532_0
executing 0.8.3 pyhd3eb1b0_0
flake8 6.0.0 py310haa95532_0
flask 2.2.2 py310haa95532_0
fonttools 4.25.0 pyhd3eb1b0_0
freetype 2.12.1 ha860e81_0
genomicsqlite 0.9.4 pypi_0 pypi
gffutils 0.12 pypi_0 pypi
giflib 5.2.1 h8cc25b3_3
glib 2.69.1 h5dc1a3c_2
greenlet 2.0.2 pypi_0 pypi
gst-plugins-base 1.18.5 h9e645db_0
gstreamer 1.18.5 hd78058f_0
html2text 2020.1.16 pypi_0 pypi
icc_rt 2022.1.0 h6049295_2
icu 58.2 ha925a31_3
idna 3.4 py310haa95532_0
imagesize 1.4.1 py310haa95532_0
importlib-metadata 6.0.0 py310haa95532_0
importlib_metadata 6.0.0 hd3eb1b0_0
inflection 0.5.1 py310haa95532_0
intel-openmp 2021.4.0 haa95532_3556
intervaltree 3.1.0 pyhd3eb1b0_0
ipykernel 6.25.0 py310h9909e9c_0
ipython 8.12.0 py310haa95532_0
ipython_genutils 0.2.0 pyhd3eb1b0_1
isort 5.9.3 pyhd3eb1b0_0
itsdangerous 2.0.1 pyhd3eb1b0_0
jaraco.classes 3.2.1 pyhd3eb1b0_0
jedi 0.18.1 py310haa95532_1
jellyfish 0.9.0 py310h2bbff1b_0
jinja2 3.1.2 py310haa95532_0
jinja2-time 0.2.0 pyhd3eb1b0_3
joblib 1.2.0 py310haa95532_0
jpeg 9e h2bbff1b_1
jsonschema 4.17.3 py310haa95532_0
jupyter_client 7.4.9 py310haa95532_0
jupyter_core 5.3.0 py310haa95532_0
jupyterlab_pygments 0.1.2 py_0
keyring 23.13.1 py310haa95532_0
kiwisolver 1.4.4 py310hd77b12b_0
krb5 1.19.4 h5b6d351_0
lazy-object-proxy 1.6.0 py310h2bbff1b_0
lerc 3.0 hd77b12b_0
libbrotlicommon 1.0.9 h2bbff1b_7
libbrotlidec 1.0.9 h2bbff1b_7
libbrotlienc 1.0.9 h2bbff1b_7
libclang 14.0.6 default_hb5a9fac_1
libclang13 14.0.6 default_h8e68704_1
libdeflate 1.17 h2bbff1b_0
libffi 3.4.4 hd77b12b_0
libiconv 1.16 h2bbff1b_2
libogg 1.3.5 h2bbff1b_1
libpng 1.6.39 h8cc25b3_0
libsodium 1.0.18 h62dcd97_0
libspatialindex 1.9.3 h6c2663c_0
libtiff 4.5.0 h6c2663c_2
libvorbis 1.3.7 he774522_0
libwebp 1.2.4 hbc33d0d_1
libwebp-base 1.2.4 h2bbff1b_1
libxml2 2.10.3 h0ad7f3c_0
libxslt 1.1.37 h2bbff1b_0
lxml 4.9.2 py310h2bbff1b_0
lz4-c 1.9.4 h2bbff1b_0
markupsafe 2.1.1 py310h2bbff1b_0
matplotlib-base 3.7.1 py310h4ed8f06_1
matplotlib-inline 0.1.6 py310haa95532_0
mccabe 0.7.0 pyhd3eb1b0_0
mistune 0.8.4 py310h2bbff1b_1000
mkl 2021.4.0 haa95532_640
mkl-service 2.4.0 py310h2bbff1b_0
mkl_fft 1.3.1 py310ha0764ea_0
mkl_random 1.2.2 py310h4ed8f06_0
mlxtend 0.22.0 py310haa95532_0
more-itertools 8.12.0 pyhd3eb1b0_0
ms-deisotope 0.0.50 pypi_0 pypi
ms-peak-picker 0.1.42 pypi_0 pypi
munkres 1.1.4 py_0
mypy_extensions 0.4.3 py310haa95532_1
nbclient 0.5.13 py310haa95532_0
nbconvert 6.5.4 py310haa95532_0
nbformat 5.7.0 py310haa95532_0
nest-asyncio 1.5.6 py310haa95532_0
networkx 3.1 pyhd8ed1ab_0 conda-forge
numexpr 2.8.4 py310hd213c9f_0
numpy 1.23.5 py310h60c9a35_0
numpy-base 1.23.5 py310h04254f7_0
numpydoc 1.5.0 py310haa95532_0
openssl 1.1.1v h2bbff1b_0
packaging 23.0 py310haa95532_0
pandas 1.5.3 py310h4ed8f06_0
pandocfilters 1.5.0 pyhd3eb1b0_0
paramiko 2.8.1 pyhd3eb1b0_0
parso 0.8.3 pyhd3eb1b0_0
pathspec 0.10.3 py310haa95532_0
pcre 8.45 hd77b12b_0
pexpect 4.8.0 pyhd3eb1b0_3
pickleshare 0.7.5 pyhd3eb1b0_1003
pillow 9.4.0 py310hd77b12b_0
pip 22.3.1 py310haa95532_0
platformdirs 2.5.2 py310haa95532_0
plotly 4.14.3 pypi_0 pypi
pluggy 1.0.0 py310haa95532_1
ply 3.11 py310haa95532_0
pooch 1.4.0 pyhd3eb1b0_0
poyo 0.5.0 pyhd3eb1b0_0
primer3-py 2.0.0 pypi_0 pypi
prompt-toolkit 3.0.36 py310haa95532_0
psims 1.2.6 pypi_0 pypi
psutil 5.9.0 py310h2bbff1b_0
ptyprocess 0.7.0 pyhd3eb1b0_2
pure_eval 0.2.2 pyhd3eb1b0_0
pycodestyle 2.10.0 py310haa95532_0
pycparser 2.21 pyhd3eb1b0_0
pydocstyle 6.3.0 py310haa95532_0
pyfaidx 0.7.2.1 pypi_0 pypi
pyflakes 3.0.1 py310haa95532_0
pygments 2.15.1 py310haa95532_1
pylint 2.16.2 py310haa95532_0
pylint-venv 2.3.0 pypi_0 pypi
pyls-spyder 0.4.0 pyhd3eb1b0_0
pymzml 2.5.2 pypi_0 pypi
pynacl 1.5.0 py310h8cc25b3_0
pynumpress 0.0.8 pypi_0 pypi
pyopenssl 23.2.0 py310haa95532_0
pyparsing 3.0.9 py310haa95532_0
pyqt 5.15.7 py310hd77b12b_0
pyqt5-sip 12.11.0 py310hd77b12b_0
pyqtwebengine 5.15.7 py310hd77b12b_0
pyrsistent 0.18.0 py310h2bbff1b_0
pysimplegui 4.60.5 pypi_0 pypi
pysocks 1.7.1 py310haa95532_0
pyteomics 4.6 pypi_0 pypi
python 3.10.9 h966fe2a_2
python-dateutil 2.8.2 pyhd3eb1b0_0
python-fastjsonschema 2.16.2 py310haa95532_0
python-idzip 0.3.9 pypi_0 pypi
python-lsp-black 1.2.1 py310haa95532_0
python-lsp-jsonrpc 1.0.0 pyhd3eb1b0_0
python-lsp-server 1.7.2 py310haa95532_0
python-slugify 5.0.2 pyhd3eb1b0_0
python_abi 3.10 2_cp310 conda-forge
pytoolconfig 1.2.5 py310haa95532_1
pytz 2022.7 py310haa95532_0
pywin32 305 py310h2bbff1b_0
pywin32-ctypes 0.2.0 py310haa95532_1000
pyyaml 6.0 py310h2bbff1b_1
pyzmq 25.1.0 py310hd77b12b_0
pyzstd 0.15.9 pypi_0 pypi
qdarkstyle 3.0.2 pyhd3eb1b0_0
qstylizer 0.2.2 pypi_0 pypi
qt-main 5.15.2 he8e5bd7_8
qt-webengine 5.15.9 hb9a9bb5_5
qtawesome 1.2.2 pypi_0 pypi
qtconsole 5.4.2 py310haa95532_0
qtpy 2.2.0 py310haa95532_0
qtwebkit 5.212 h2bbfb41_5
regex 2023.6.3 pypi_0 pypi
requests 2.31.0 py310haa95532_0
retrying 1.3.4 pypi_0 pypi
rope 1.7.0 py310haa95532_0
rtree 1.0.1 py310h2eaa2aa_0
scikit-learn 1.2.2 py310hd266714_2 conda-forge
scipy 1.10.0 py310hb9afe5d_1
seaborn 0.12.2 py310haa95532_0
setuptools 68.0.0 py310haa95532_0
simplejson 3.19.1 pypi_0 pypi
sip 6.6.2 py310hd77b12b_0
six 1.16.0 pyhd3eb1b0_1
snapgene-reader 0.1.20 pypi_0 pypi
snowballstemmer 2.2.0 pyhd3eb1b0_0
sortedcontainers 2.4.0 pyhd3eb1b0_0
soupsieve 2.4 py310haa95532_0
sphinx 5.0.2 py310haa95532_0
sphinxcontrib-applehelp 1.0.2 pyhd3eb1b0_0
sphinxcontrib-devhelp 1.0.2 pyhd3eb1b0_0
sphinxcontrib-htmlhelp 2.0.0 pyhd3eb1b0_0
sphinxcontrib-jsmath 1.0.1 pyhd3eb1b0_0
sphinxcontrib-qthelp 1.0.3 pyhd3eb1b0_0
sphinxcontrib-serializinghtml 1.1.5 pyhd3eb1b0_0
spyder 5.4.1 py310haa95532_0
spyder-kernels 2.4.1 py310haa95532_0
sqlalchemy 2.0.19 pypi_0 pypi
sqlite 3.41.2 h2bbff1b_0
stack_data 0.2.0 pyhd3eb1b0_0
tenacity 8.2.2 py310haa95532_0
text-unidecode 1.3 pyhd3eb1b0_0
textdistance 4.2.1 pyhd3eb1b0_0
threadpoolctl 2.2.0 pyh0d69192_0
three-merge 0.1.1 pyhd3eb1b0_0
tinycss2 1.2.1 py310haa95532_0
tk 8.6.12 h2bbff1b_0
toml 0.10.2 pyhd3eb1b0_0
tomli 2.0.1 py310haa95532_0
tomlkit 0.11.1 py310haa95532_0
tornado 6.3.2 py310h2bbff1b_0
traitlets 5.7.1 py310haa95532_0
typing-extensions 4.7.1 py310haa95532_0
typing_extensions 4.7.1 py310haa95532_0
tzdata 2023c h04d1e81_0
ucrt 10.0.20348.0 haa95532_0
ujson 5.4.0 py310hd77b12b_0
unidecode 1.2.0 pyhd3eb1b0_0
urllib3 1.26.16 py310haa95532_0
vc 14.2 h21ff451_1
vc14_runtime 14.36.32532 hfdfe4a8_17 conda-forge
vs2015_runtime 14.36.32532 h05e6639_17 conda-forge
watchdog 2.1.6 py310haa95532_0
wcwidth 0.2.5 pyhd3eb1b0_0
webencodings 0.5.1 py310haa95532_1
werkzeug 2.2.3 py310haa95532_0
whatthepatch 1.0.2 py310haa95532_0
wheel 0.38.4 py310haa95532_0
win_inet_pton 1.1.0 py310haa95532_0
wrapt 1.14.1 py310h2bbff1b_0
xmltodict 0.13.0 pypi_0 pypi
xz 5.4.2 h8cc25b3_0
yaml 0.2.5 he774522_0
yapf 0.31.0 pyhd3eb1b0_0
zeromq 4.3.4 hd77b12b_0
zipp 3.11.0 py310haa95532_0
zlib 1.2.13 h8cc25b3_0
zstd 1.5.5 hd43e919_0