[Nek5000-users] The first time step in a Nek file must contain a mesh

[nek5000-users at lists.mcs.anl.gov]

Hi neks,

I try to visualize the V.karman' vortexes by computing the vorticity 
field with this subroutine :

        if(mod(istep,iostep).eq.0) then
        call comp_vort3(vort,work1,work2,vx,vy,vz)                     
        call outpost(vort(1,3),vort(1,2),vort(1,1),pr,t,'vrt')
        endif
Which works but, when i try to post-processes the data with Vizit i got 
the fallowing error message :

"The first time step in a Nek file must contain a mesh"


i try to open my vrt[mycase].fld* files with vis.nek3D which contains

NEK5000
version 1.0
filetemplate: vrtvkarman2.fld%02d
firsttimestep: 1
numtimesteps: 2

Is there a way to fix this ?
Sorry for my poor english ..
B.regards
Can