open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi guys,

I have prepared geometry and boundary condition files, but when I input both of the files, the FUDDA shows the message: "cartesiane grid is not supported".After that I continue the process, it shows there is something wrong with the boundary conditions so that I cannot run out the result file.
Can anybody help me solve this question? Do I need to change the grid type?

Many thanks,

Alison