error when exporting simulink model as variable step FMU

I am trying to export a simulink model containing Simscape multibody networks with variable step solver.

Here is the run info:

"Setting System Target to FMU 'Co-Simulation' for model 'ScaleBike_NoPend_V3'.

Setting Hardware Implementation > Device Type to 'MATLAB Host' for model 'ScaleBike_NoPend_V3'.

Model 'ScaleBike_NoPend_V3' is deployment diagram. variable step FMU export is not supported for this model architecture."

I used MATLAB R2024b, but the same error occured when exporting with R2024a.

The model looks like:

The Solver is Ode45(variable step) with tolerance of 1e-3.

The Code generation configuration: the target file is fmu2cs.tlc and tool chain used to compile is MinGW64|Cmake/Ninja(64-bit Windows). Fixed-step fmu export could be done successfully with this configuration.

[Yukthi S]

Hi, Can you share the Simulink model you are working with and reproduction steps to reproduce the error?

Answer 1

[一凡]

Here is the simulink model and initialization code.

Run the init_car_params.m first and export the model next, then the error will occur.

[Yukthi S]

I followed the reproduction steps and I got the error given below. Can you have a look into it and share all the relevant files?

Error:['ScaleBike_NoPend_V3']: The following errors were found in the model ScaleBike_NoPend_V3.

Caused by:

['ScaleBike_NoPend_V3/bike/body_link/Visual1']: The parameter Geometry/File Name is a file that does not exist. Resolve this issue in order to simulate the model.

['ScaleBike_NoPend_V3/bike/frontfork_link/Visual1']: The parameter Geometry/File Name is a file that does not exist. Resolve this issue in order to simulate the model.

['ScaleBike_NoPend_V3/bike/frontfork_link/Visual1']: Inertia cannot be computed from geometry. Resolve this issue in order to simulate the model.

['ScaleBike_NoPend_V3/bike/frontsuspension_link/Visual1']: The parameter Geometry/File Name is a file that does not exist. Resolve this issue in order to simulate the model.

['ScaleBike_NoPend_V3/bike/frontsuspension_link/Visual1']: Inertia cannot be computed from geometry. Resolve this issue in order to simulate the model.

['ScaleBike_NoPend_V3/bike/rearsuspension_link/Visual']: The parameter Geometry/File Name is a file that does not exist. Resolve this issue in order to simulate the model.

['ScaleBike_NoPend_V3/bike/rearsuspension_link/Visual']: Inertia cannot be computed from geometry. Resolve this issue in order to simulate the model.