Diagnosis
You have not entered a quantity for the primary output or the basequantity for the formula in the I/O Materials and I/O Substances views.The cost can only be calcuated if at least one quantity has beenspecified.

System Response
The calculation is not performed.

Procedure
Enter a quantity for the primary output or a base quantity for theformula in the I/O Materials or I/O Sustances view. Calculate thecosts.