Meshing a pre stressed membrane element

[Andrea77]

Hi to everyone, I'm using Prestressed membrane element and I try to mesh it using a 8 nodes quadratic element.
When I try to solve it, I receive a message which say: "Element PreStressedMembraneCorotationalElement Quadrilateral (8 nodes) not available for surface entities on group"

[escolano]

This message is related (and raised) by the problemtype or solver, not by GiD itself.

GiD can generate quadrilaterals quadratic of 8 or 9 nodes.
But be able to use them for some simulation is responsibility of the problemtype/solver

GiD doesn't have any Element PreStressedMembraneCorotationalElement structural element
You must ask this question to the developers of this problemtype.