[petsc-users] Cannot convert error

[Eduardo]

Does anyone know the reason for the following errors:

error: cannot convert ‘_p_KSP**’ to ‘KSP {aka _p_KSP*}’ for argument
‘1’ to ‘PetscErrorCode KSPDestroy(KSP)’
error: cannot convert ‘_p_VecScatter**’ to ‘VecScatter {aka
_p_VecScatter*}’ for argument ‘1’ to ‘PetscErrorCode
VecScatterDestroy(VecScatter)’

Thanks in advance,
Eduardo