Hi I've obtained this error u
 

Hi
I've obtained this error using a transient boundary condition on total pressure and static temperature.
Could someone help me?

gradientInternalCoeffs cannot be called for a genericFvPatchField (actual type timeVaryingUniformTotalPressure)
on patch inlet of field p in file "/data01/attili/OpenFOAM/attili-1.5/run/nozzle_start/0/p"
You are probably trying to solve for a field with a generic boundary condition.

From function genericFvPatchField<type>::gradientInternalCoeffs( ) const
in file fields/fvPatchFields/basic/generic/genericFvPatchField.C at line 692.

Thaks
Antonio