[Naruto]

Hi,
I am quiet new in the world of CFD and open source software. That is why I am apologizing at first if my question seems too naive. Currently I am trying to build a flow model of my own. At first I drew the geometry in Blender. Then I exported the geometry in .stl format. My blender version is 2.6. Blender version 2.6 does not allow exporting geometry in ASCII .stl format.

After that I imported my geometry in engrid. I wanted to do my meshing using engrid. but for some strange reason engrid did not perform any meshing in my geometry. However, I was able to put boundary conditions to my geometry and save it in ASCII .stl format in engrid. I used Gmsh to perform meshing in the geometry. But when I tried to convert the gmsh meshes to OpenFOAM mesh using the command gmshToFoam then this error message appeared:
FOAM FATAL IO ERROR:
No cells read from file "Pro.msh"
Does your file specify any 3D elements (hex=5, prism=6, pyramid=7, tet=4)?
Perhaps you have not exported the 3D elements?

Right now I am very frustrated. I am just stuck in here. I did a lot of trial and error stuff in the last week. But I could not make it work. Please suggest me something. I am attaching my files.
Regards,
Naruto