The error message "Unable to find generated code or generated code is incomplete for subsystem" typically indicates that there is an issue with the generated code for a subsystem in your model. Try to check for the following things to resolve the issue:
- Make sure there are not any build errors present in the model. If there are any build errors, try to resolve that.
- Ensure that configuration settings are properly set up for the model and "System Target File" and "Toolchain” settings are correct according to your target platform.
- Make sure blocks which are present in the Subsystem are compatible with code generation or not this can be checked in with this link https://in.mathworks.com/help/ecoder/ug/supported-products-and-block-usage.html.
- Also check the configuration parameters with (ctrl + E) in code generation section that "Generate code only" option is selected or not.
