pysyc error when adding MAPDL participant as session on Linux 25R2

### 🔍 Before submitting the issue

- [x] I have searched among the existing issues
- [x] I am using a Python virtual environment

### 🐞 Description of the bug

I can connect MAPDL participant as session on windows 25R2 but not linux. I get:

pysyTraceback (most recent call last):
File "/lus01/pshutche/Antenna/Cylinder-vortex-shedding/pysyc-slurm/main.py", line 30, in
solid = syc.setup.add_participant(participant_session = mechanical)
File "/lus01/pshutche/AirbusHeli/pyenv/lib/python3.10/site-packages/ansys/systemcoupling/core/adaptor/impl/types.py", line 757, in __call__
return self.sycproxy.execute_injected_cmd(
File "/lus01/pshutche/AirbusHeli/pyenv/lib/python3.10/site-packages/ansys/systemcoupling/core/adaptor/impl/syc_proxy.py", line 128, in execute_injected_cmd
return cmd(**kwargs)
File "/lus01/pshutche/AirbusHeli/pyenv/lib/python3.10/site-packages/ansys/systemcoupling/core/adaptor/impl/injected_commands.py", line 93, in
"add_participant": lambda **kwargs: _wrap_add_participant(
File "/lus01/pshutche/AirbusHeli/pyenv/lib/python3.10/site-packages/ansys/systemcoupling/core/adaptor/impl/injected_commands.py", line 136, in _wrap_add_participant
return part_mgr.add_participant(
File "/lus01/pshutche/AirbusHeli/pyenv/lib/python3.10/site-packages/ansys/systemcoupling/core/participant/manager.py", line 84, in add_participant
part_state.participant_analysis_type = participant_session.get_analysis_type()
File "/lus01/pshutche/AirbusHeli/pyenv/lib/python3.10/site-packages/ansys/systemcoupling/core/participant/mapdl.py", line 72, in get_analysis_type
raise MapdlRuntimeError(f"Unsupported analysis type: {analysis_type}")
NameError: name 'MapdlRuntimeError' is not defined. Did you mean: 'RuntimeError'?

### 📝 Steps to reproduce

Submission script:

#!/bin/bash -l
#
# Set slurm options as needed
#
#SBATCH --mail-user="paul.hutcheson@ansys.com"
#SBATCH --mail-type=ALL
#SBATCH --job-name Cylinder
#SBATCH --nodes=1
#SBATCH --partition=ottc02
# --exclusive
#SBATCH --ntasks-per-node=32
#SBATCH --output=%x-%j.out
#SBATCH --error=%x-%j.err
#SBATCH --export=ALL
# There is more flexibility with slurm:
# --nodes=1
# --ntasks-per-node=32
# --ntasks=32
#
# An example script to submit a co-simulation into a queue system
#
# Set DISPLAY variable
export DISPLAY=ottvnc5:3
#
# Optionally set paths to ANSYS and system coupling areas
export AWP_ROOT252=/ott/apps/software/v252

#export SYSC_ROOT=${AWP_ROOT251}/SystemCoupling
export SYSC_ROOT=${AWP_ROOT252}/SystemCoupling
#
# print job start time and Slurm job resources
#
date
echo "SLURM_JOB_ID : "$SLURM_JOB_ID
echo "SLURM_JOB_NODELIST : "$SLURM_JOB_NODELIST
echo "SLURM_JOB_NUM_NODES : "$SLURM_JOB_NUM_NODES
echo "SLURM_NODELIST : "$SLURM_NODELIST
echo "SLURM_NTASKS : "$SLURM_NTASKS
echo "SLURM_TASKS_PER_NODE : "$SLURM_TASKS_PER_NODE
echo "working directory : "$SLURM_SUBMIT_DIR
#
#echo "Running System Coupling"
echo " System coupling main execution host is $HOSTNAME"
echo " Current working directory is $PWD"
echo " ANSYS install root is $AWP_ROOT252"
echo " System coupling root is $SYSC_ROOT"
echo " Run script is $1"
echo

# Activate python environment
source ~/pyenv/bin/activate

# Call python script
python main.py

pysyc script "main.py":

import ansys.fluent.core as pyfluent
import ansys.mapdl.core as pymapdl
import ansys.systemcoupling.core as pysystemcoupling

Fluent_folder = "Fluent_1"
Fluent_case = "Fluent-overset-laminar.cas.h5"
Fluent_cores = 32
#Fluent_ui_mode = "no_gui_or_graphics" # -g
Fluent_ui_mode = "no_gui" # -gu
Mechanical_folder = "Mechanical_2"
Mechanical_input = "Mechanical.dat"
Mechanical_cores = 16
#Mechanical_install = "/ott/apps/daily_builds/linx64/v252_Certified_Daily/ansys_inc/v252/ansys/bin/ansys252"

# Start Mechanical
mechanical = pymapdl.launch_mapdl(nproc = Mechanical_cores,override = True, run_location = Mechanical_folder)

# Read input file
mechanical.input(Mechanical_input)

# Read scheduler options for Fluent

# Start Fluent as session
fluent = pyfluent.launch_fluent(case_file_name = Fluent_case, processor_count = Fluent_cores, ui_mode = Fluent_ui_mode, cwd = Fluent_folder, graphics_driver = "null")

# Start System Coupling
syc = pysystemcoupling.launch(start_output=True)

# Connect participants
solid = syc.setup.add_participant(participant_session = mechanical)
fluid = syc.setup.add_participant(participant_session = fluent)

# Create interface
fsi_interface = syc.setup.add_interface(
side_one_participant=solid,side_one_regions=['FSIN_1'],
side_two_participant=fluid,side_two_regions=['fsi'])

# Create data transfers
force_transfer_name = syc.setup.add_data_transfer(
interface=fsi_interface,
target_side="One",
target_variable="FORC",
source_variable="force",
)

displacement_transfer_name = syc.setup.add_data_transfer(
interface=fsi_interface,
target_side="Two",
source_variable="INCD",
target_variable="displacement",
)

# Set timestep
syc.setup.solution_control.time_step_size = 1e-3
syc.setup.solution_control.end_time = 1e-3
syc.setup.solution_control.maximum_iterations = 1
syc.solution.solve()

# End parametric sweep

syc.solution.shutdown()
#fluent.exit()
#mechanical.exit()
syc.exit()

### 💻 Which operating system are you using?

Linux

### 📀 Which ANSYS version are you using?

25R2

### 🐍 Which Python version are you using?

3.10

### 📦 Installed packages

```shell
aiohappyeyeballs==2.6.1
aiohttp==3.11.18
aiosignal==1.3.2
ansys-api-fluent==0.3.35
ansys-api-mapdl==0.5.2
ansys-api-platform-instancemanagement==1.1.2
ansys-api-systemcoupling==0.2.0
ansys-api-tools-filetransfer==0.1.1
ansys-fluent-core==0.30.2
ansys-mapdl-core==0.70.2
ansys-mapdl-reader==0.54.2
ansys-math-core==0.2.2
ansys-platform-instancemanagement==1.1.2
ansys-systemcoupling-core==0.10.1
ansys-tools-filetransfer==0.1.1
ansys-tools-path==0.7.1
ansys-tools-visualization-interface==0.9.1
ansys-units==0.4.0
appdirs==1.4.4
async-timeout==5.0.1
attrs==24.2.0
certifi==2025.1.31
charset-normalizer==3.4.1
click==8.1.8
colorama==0.4.6
contourpy==1.3.1
cpylog==1.5.0
cycler==0.12.1
defusedxml==0.7.1
docker==7.1.0
docopt-ng==0.9.0
fonttools==4.56.0
frozenlist==1.6.0
geomdl==5.3.1
googleapis-common-protos==1.69.2
grpcio==1.71.0
grpcio-health-checking==1.62.3
grpcio-status==1.62.3
idna==3.10
importlib_metadata==8.6.1
joblib==1.4.2
kiwisolver==1.4.8
matplotlib==3.10.1
more-itertools==10.7.0
msgpack==1.1.0
multidict==6.4.3
nltk==3.9.1
numpy==1.26.4
packaging==24.2
pandas==2.2.3
pexpect==4.9.0
pillow==11.1.0
platformdirs==4.3.7
pooch==1.8.2
propcache==0.3.1
protobuf==4.25.6
psutil==7.0.0
ptyprocess==0.7.0
pyansys-tools-report==0.8.2
pyansys-tools-versioning==0.6.0
pyiges==0.3.1
pyNastran==1.4.1
pyparsing==3.2.1
python-dateutil==2.9.0.post0
pytz==2025.1
pyvista==0.45.0
PyYAML==6.0.2
regex==2024.11.6
requests==2.32.3
scipy==1.15.2
scooby==0.10.0
six==1.17.0
tabulate==0.9.0
tqdm==4.67.1
trame==3.9.0
trame-client==3.8.1
trame-common==0.2.0
trame-server==3.4.0
trame-vtk==2.8.15
trame-vuetify==3.0.1
typing_extensions==4.13.2
tzdata==2025.1
urllib3==2.3.0
vtk==9.4.2
websockets==15.0.1
wslink==2.3.3
yarl==1.20.0
zipp==3.21.0
```

Start with ansys/systemcoupling/core/participant/mapdl.py and inspect get_analysis_type(), which the traceback identifies as the failing entry point. Reproduce the provided main.py submission on Linux with Python 3.10 and System Coupling 25R2; done means MAPDL participant setup no longer raises NameError and reports or handles the analysis type correctly.

Written by the indexing model from the issue text.