hi,

when i run this script :

load “msh3”

load “medit”

load “UMFPACK64”

load “iovtk”

load"gmsh"

lockOrientation = false;

// Global parameters

//verbosity = 0;

real cpu=clock();

int N=1;

mesh3 Th=gmshload3(“CC_simple_geo.msh”);

mesh3 Th2=gmshload3(“CC_simple_geo_2.msh”);

mesh3 Th3 = Th + Th2;

mesh3 Th4 = gmshload3(“Thassembly.msh”);

lockOrientation = true;

fespace Ph(Th, P2);

fespace Ph2(Th2, P2);

Ph condair = 0.024;

Ph2 condpu = 0.29;

fespace Ph3(Th3, P2);

Ph3 cond= condair+condpu;

mesh3 renumbered = Th4;

fespace Vh(renumbered, P2,periodic=[[36,y,x],[35,y,x],[49,y,x],[61,y,x],[46,y,x],[64,y,x],[43,y,x],[58,y,x],[55,y,x],[52,y,x],[44,y,z],[39,y,z],[42,y,z],[38,y,z],[48,y,z],[51,y,z],[63,y,z],[56,y,z],[60,y,z],[54,y,z]]);

Vh u = x + y + z, wh1,wh2,wh3,vh,coeffh;

i receive this error :

is there any solution please ?