<html><head></head><body><div class="yahoo-style-wrap" style="font-family:times new roman, new york, times, serif;font-size:16px;"><div>Hello Gmsh users,</div><div><br></div><div dir="ltr" data-setdir="false">I am beginner in Gmsh.<br></div><div dir="ltr" data-setdir="false">I would like to know if somebody can tell me how to avoid the following message error in Gmsh: <br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><div>INPUT ERROR :<br><div>Wrong initial configuration: a slave node belongs to the master surface.</div><div><br></div><div dir="ltr" data-setdir="false">Thanks</div><div dir="ltr" data-setdir="false">Anani DJATO<br></div><br></div><div><br></div></div></div></body></html>