I have generated a mesh of the gmesh format around a 3D cylinder(radius=0.5). When I perform the following command:

./MeshConvert -m cyl:surf=16,17:r=0.5:N=10 cylinder_straightlines.xml cylinder_highorder.xml

The following error message is generated:

Fatal   : Level 0 assertion violation

This function is only valid for shape type geometries

terminate called after throwing an instance of 'ErrorUtil::NekError'

  what():  Level 0 assertion violation

This function is only valid for shape type geometries

Can anybody tell me how to solve this problem? The msh and cylinder_straightlines.xml files are attached.

Thank you!

Best

Jian Yu