# Savemesh does not work properly
**URL:** https://community.freefem.org/t/savemesh-does-not-work-properly/966
**Category:** General Discussion
**Created:** [May 7, 2021, 2:59pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966 "2021-05-07T14:59:23Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@sgkkr](https://community.freefem.org/u/sgkkr)
#### Post date: [May 7, 2021, 2:59pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/1 "2021-05-07T14:59:23Z")
I have several discrete meshes and I join them on Freefem++ using the following command. The mesh is created perfectly and I can plot it. But there is an error while saving the mesh. As a check, I am also able to create a FE space on the mesh.
mesh th1 = readmesh(“meshgh1c.msh”);
mesh th2 = readmesh(“meshgh2c.msh”);
mesh th3 = readmesh(“meshgh3c.msh”);
mesh th4 = readmesh(“meshgh4c.msh”);
mesh th5 = readmesh(“meshgh5c.msh”);
mesh th6 = readmesh(“meshgh6c.msh”);
mesh th7 = readmesh(“meshgh7c.msh”);
mesh gha = th2 + th3;
mesh ghb = th4 + th5 + th6 + th7;
mesh ghf = th1 + gha + ghb;
fespace Vh(ghf,P2);
Vh tempx, tempy;
savemesh(ghf,“meshghf.mesh”);
The error I get is as follows:
we loss some 288 edges other 1334
Fatal error in the meshgenerator 1100
current line = 28
Meshing error: Bamg
number : 1100,
Meshing error: Bamg
number : 1100,
err code 4 , mpirank 0
Any suggestions will be appreciated. Thank you very much in advance.
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### Author:  [@julienG](https://community.freefem.org/u/julienG)
#### Post date: [May 7, 2021, 3:07pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/2 "2021-05-07T15:07:56Z")
maybe the file extension `.mesh` is incorrect for 2d. Did you try `.msh` extension?
> savemesh(ghf,“meshghf.msh”);
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### Author:  [@sgkkr](https://community.freefem.org/u/sgkkr)
#### Post date: [May 7, 2021, 3:27pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/3 "2021-05-07T15:27:24Z")
Thank you @julienG I did try `.msh` extension but it didn’t work either.
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### Author:  [@Daoudi](https://community.freefem.org/u/Daoudi)
#### Post date: [May 8, 2021, 1:18pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/4 "2021-05-08T13:18:14Z")
mesh ghf = th1 + gha + ghb;
Is the
plot(ghg) ;
work perfectly ?
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### Author:  [@sgkkr](https://community.freefem.org/u/sgkkr)
#### Post date: [May 8, 2021, 2:27pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/5 "2021-05-08T14:27:53Z")
Hi @Daoudi Yes, it works perfectly.
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### Author:  [@Daoudi](https://community.freefem.org/u/Daoudi)
#### Post date: [May 8, 2021, 2:43pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/6 "2021-05-08T14:43:45Z")
How do you build your 7 Meshes ?
Freefem or an other software ( like GMSH…)
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### Author:  [@sgkkr](https://community.freefem.org/u/sgkkr)
#### Post date: [May 8, 2021, 6:08pm UTC](https://community.freefem.org/t/savemesh-does-not-work-properly/966/7 "2021-05-08T18:08:50Z")
Hi @Daoudi I built all the 7 meshes on Freefem++