[Gmsh] Could not recover boundary mesh: error 2

[Bruno]

Dear Gmsh users,

When importing and trying to 3D mesh a STL file I get the following 
error message:

"Could not recover boundary mesh: error 2"

But in gmsh output nothing seems to be wrong apart from this message 
(see attached log) .

Therefore I can't figure out what the problem is. Any idea?

Best regards

Bruno Agostini

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