The warning message mentioned above is triggered during the build process for Simulink Real-Time compilation. This occurs when a model contains blocks whose sample time cannot be modified at runtime. The warning simply highlights that these blocks sample time cannot change at runtime, even if the sample time for the entire model is adjusted at runtime.
This warning does not indicate an issue with the model. It merely serves as a reminder that the model must be rebuilt whenever changes are made to the sample time. Therefore, it seems there is no specific solution for this issue.
As a workaround, consider disabling the warning message using the following command:
>> warning('off', 'xPCTarget:sampleTime:sampleTimeInvariance');
