** ERROR 308308 ** V/P switch-over By %weight reduction value is not specified or not appropriate.
Please check the value and run the analysis again.
You have set up to run a Microcellular injection molding analysis, and you have selected to switch from velocity control to pressure control By %weight reduction, but you haven't specified by what percentage you would like the weight of the part to be reduced. Enter a value between 0 and 50%; a typical value might be 10%.
Enter, or correct, the Velocity/pressure switch-over (Microcellular) in the Process Settings Wizard: