why a model developed with simulink R2017b doesn't work with simulink R2018?

When I run the model developed with simulink R2017, in Simulink R2018 appears a message on the Jacobian that exceeds the limits

Answer 1

[Steven Lord]

Try running the upgrade advisor on your model in release R2018a to see if it suggests any modifications to the model either due to new or changed functionality in release R2018a or due to an issue with the original model.

[Valeria Russo]

Thanks for the answer, I have tried running the upgrade advisor, but some checks are failed. How can I solve this problem?

Answer 2

[Valeria Russo]

Thanks for the answer, I have tried running the upgrade advisor, but some checks are failed. How can I solve this problem?