Open
Description
🔍 Before submitting the issue
- I have searched among the existing issues
- I am using a Python virtual environment
🐞 Description of the bug
When running the 01_bracket_scaffold example, the Prime server crashes when file_io.import_cad(...) is executed.
When Prime is launched with launch_prime, this results in the following error:
_MultiThreadedRendezvous: <_MultiThreadedRendezvous of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "IOCP/Socket: Connection reset (An existing connection was forcibly closed by the remote host.
-- 10054)"
debug_error_string = "UNKNOWN:Error received from peer {created_time:"2025-01-15T12:58:18.4161149+00:00", grpc_status:14, grpc_message:"IOCP/Socket: Connection reset (An existing connection was forcibly closed by the remote host.\r\n -- 10054)"}"
When instead attaching to a manually started Prime server [1], the server process crashes without providing any error output [2], with the same error again shown on the Python side.
The crashed Prime server produces a crash dump with the following stacktrace (without debug symbols). I can share the crash dump privately.
The issue has some similarity to #929, but the output from the server process is different, so may be a separate issue.
[1] started with & 'C:\Program Files\ANSYS Inc\v251\meshing\Prime\runPrime.bat' server from Powershell, using prime.Client(ip='localhost', port=50055) to connect to it
[2] output from the server
Welcome to Ansys Prime Meshing (2025R1)
Copyright 1987 - 2025 ANSYS,Inc. All Rights Reserved.
Starting Ansys Prime Server...
Server listening on : 127.0.0.1:50055
📝 Steps to reproduce
Run the 01_bracket_scaffold example.
💻 Which operating system are you using?
Windows
📀 Which ANSYS version are you using?
2025R1
🐍 Which Python version are you using?
3.10
📦 Installed packages
aiohappyeyeballs==2.4.4
aiohttp==3.11.11
aiosignal==1.3.2
annotated-types==0.7.0
ansys-acp-core==0.1.0
ansys-additive-core==0.19.0
ansys-additive-widgets==0.2.1
ansys-api-acp==0.2.0
ansys-api-additive==2.2.1
ansys-api-dbu==0.3.6
ansys-api-dyna==0.4.2
ansys-api-edb==1.0.10
ansys-api-fluent==0.3.32
ansys-api-geometry==0.4.16
ansys-api-mapdl==0.5.2
ansys-api-mechanical==0.1.2
ansys-api-meshing-prime==0.1.4
ansys-api-modelcenter==0.3.1
ansys-api-platform-instancemanagement==1.1.0
ansys-api-pyensight==0.4.2
ansys-api-sherlock==0.1.35
ansys-api-systemcoupling==0.2.0
ansys-api-tools-filetransfer==0.1.1
ansys-api-workbench==0.2.0
ansys-conceptev-core==0.8
ansys-dpf-composites==0.6.2
ansys-dpf-core==0.13.3
ansys-dpf-post==0.9.2
ansys-dyna-core==0.7.0
ansys-dynamicreporting-core==0.9.0
ansys-edb-core==0.1.9
ansys-engineeringworkflow-api==0.1.0
ansys-fluent-core==0.28.2
ansys-geometry-core==0.7.6
ansys-grantami-bomanalytics==2.2.0
ansys-grantami-bomanalytics-openapi==3.1.0
ansys-grantami-jobqueue==1.1.0
ansys-grantami-recordlists==1.3.0
ansys-grantami-serverapi-openapi==4.0.0
ansys-hps-client==0.9.1
ansys-mapdl-core==0.68.6
ansys-mapdl-reader==0.54.2
ansys-math-core==0.2.0
ansys-mechanical-core==0.11.11
ansys-mechanical-env==0.1.8
ansys-mechanical-stubs==0.1.5
ansys-meshing-prime==0.7.0
ansys-modelcenter-workflow==0.1.1
ansys-motorcad-core==0.7.0
ansys-openapi-common==2.2.0
ansys-optislang-core==0.9.2
ansys-platform-instancemanagement==1.1.2
ansys-pyensight-core==0.9.2
ansys-pythonnet==3.1.0rc5
ansys-rocky-core==0.3.1
ansys-seascape==0.2.0
ansys-sherlock-core==0.8.1
ansys-simai-core==0.2.5
ansys-sound-core==0.1.3
ansys-systemcoupling-core==0.8.0
ansys-tools-filetransfer==0.1.1
ansys-tools-local-product-launcher==0.1.1
ansys-tools-path==0.7.1
ansys-tools-visualization-interface==0.7.0
ansys-turbogrid-api==0.4.3
ansys-turbogrid-core==0.4.1
ansys-units==0.3.4
ansys-workbench-core==0.7.0
anyio==4.8.0
appdirs==1.4.4
asgiref==3.8.1
asttokens==3.0.0
async-timeout==5.0.1
attrs==24.2.0
backoff==2.2.1
bcrypt==4.2.1
beartype==0.19.0
bleach==6.2.0
bokeh==3.4.3
build==1.2.2.post1
cachetools==5.5.0
certifi==2024.12.14
cffi==1.17.1
charset-normalizer==3.4.1
click==8.1.8
clr_loader==0.2.7.post0
colorama==0.4.6
comm==0.2.2
contourpy==1.3.1
cryptography==44.0.0
cycler==0.12.1
dataclasses-json==0.6.7
debugpy==1.8.11
decorator==5.1.1
defusedxml==0.7.1
Deprecated==1.2.15
dill==0.3.9
Django==4.2.17
django-guardian==2.4.0
djangorestframework==3.15.2
docker==7.1.0
elementpath==4.7.0
exceptiongroup==1.2.2
executing==2.1.0
fabric==3.2.2
filelock==3.16.1
flexcache==0.3
flexparser==0.4
fonttools==4.55.3
fpdf2==2.8.2
frozenlist==1.5.0
geomdl==5.3.1
google-api-core==2.24.0
google-api-python-client==2.159.0
google-auth==2.37.0
google-auth-httplib2==0.2.0
googleapis-common-protos==1.66.0
grpcio==1.67.1
grpcio-health-checking==1.62.3
grpcio-status==1.62.3
h11==0.14.0
hollerith==0.6.0
httpcore==1.0.7
httplib2==0.22.0
httpx==0.28.1
idna==3.10
importlib_metadata==8.5.0
invoke==2.2.0
ipykernel==6.29.5
ipython==8.31.0
jedi==0.19.2
Jinja2==3.1.5
joblib==1.4.2
jsonschema==4.23.0
jsonschema-specifications==2024.10.1
jupyter_client==8.6.3
jupyter_core==5.7.2
kiwisolver==1.4.8
linkify-it-py==2.0.3
lxml==5.3.0
Markdown==3.7
markdown-it-py==3.0.0
MarkupSafe==3.0.2
marshmallow==3.25.1
marshmallow-oneofschema==3.1.1
matplotlib==3.10.0
matplotlib-inline==0.1.7
mdit-py-plugins==0.4.2
mdurl==0.1.2
more-itertools==10.5.0
msal==1.31.1
msal-extensions==1.2.0
msgpack==1.1.0
multidict==6.1.0
mypy-extensions==1.0.0
nest-asyncio==1.6.0
networkx==3.4.2
nltk==3.9.1
numpy==2.2.1
overrides==7.7.0
packaging==24.2
pandas==2.2.3
panel==1.4.4
param==2.2.0
paramiko==3.5.0
parso==0.8.4
patsy==1.0.1
pdf2image==1.17.0
pillow==11.1.0
Pint==0.24.4
platformdirs==4.3.6
plumbum==1.9.0
pooch==1.8.2
portalocker==2.10.1
prompt_toolkit==3.0.48
propcache==0.2.1
proto-plus==1.25.0
protobuf==4.25.5
psutil==6.1.1
pure_eval==0.2.3
pyaedt==0.13.0
pyansys==2025.1.1
pyansys-tools-variableinterop==0.1.1
pyansys-tools-versioning==0.6.0
pyasn1==0.6.1
pyasn1_modules==0.4.1
pycparser==2.22
pydantic==2.9.2
pydantic_core==2.23.4
pyedb==0.34.3
pygltflib==1.16.3
Pygments==2.19.1
pygranta==2025.1.0
pyiges==0.3.1
PyJWT==2.10.1
PyNaCl==1.5.0
pyparsing==3.2.1
pypiwin32==223
pypng==0.20220715.0
pyproject_hooks==1.2.0
Pyro5==5.15
pyspnego==0.11.2
python-dateutil==2.9.0.post0
python-dotenv==1.0.1
python-pptx==0.6.19
pytwin==0.7.0
pytz==2024.2
pyvista==0.44.1
pyviz_comms==3.0.3
pywin32==308
PyYAML==6.0.2
pyzmq==26.2.0
referencing==0.35.1
regex==2024.11.6
requests==2.32.3
requests-negotiate-sspi==0.5.2
requests-toolbelt==1.0.0
requests_ntlm==1.3.0
rpds-py==0.22.3
rpyc==6.0.1
rsa==4.9
Rtree==1.3.0
scikit-rf==1.5.0
scipy==1.15.1
scooby==0.10.0
semver==3.0.2
serpent==1.41
six==1.17.0
sniffio==1.3.1
sqlparse==0.5.3
sseclient-py==1.8.0
sspilib==0.2.0
stack-data==0.6.3
statsmodels==0.14.4
tabulate==0.9.0
toml==0.10.2
tomli==2.2.1
tomli_w==1.1.0
tornado==6.4.2
tqdm==4.67.1
traitlets==5.14.3
trame==3.7.6
trame-client==3.5.1
trame-server==3.3.0
trame-vtk==2.8.14
trame-vuetify==2.8.0
typing-inspect==0.9.0
typing_extensions==4.12.2
tzdata==2024.2
tzlocal==5.2
uc-micro-py==1.0.3
uritemplate==4.1.1
urllib3==2.3.0
usd-core==24.11
vtk==9.4.1
wakepy==0.10.1
wcwidth==0.2.13
webencodings==0.5.1
websockets==14.1
WMI==1.5.1
wrapt==1.17.2
wslink==2.2.2
XlsxWriter==3.2.0
xmlschema==3.4.3
xyzservices==2024.9.0
yarl==1.18.3
zipp==3.21.0