Diagnosis
The value &v1& contains a unit without a dimension.
The unit of the characteristic cannot be converted to the unit youentered. The unit of the characteristic and the unit you enteredcannot be converted to other units.In the step Global settings of the IMG, you define whether ornot other units are allowed for the individual units.

Procedure
Enter the unit that has been defined for the characteristic,or a unit to which the unit of the characteristic can be converted.