Hey guys... im trying to model the Ninja Tut made by The Great Kurt but im having problems converting my poly head into a subdiv... i keep getting this Result: 0

[EDIT]

script editor messege:

doSubdivCreate( "2", { "1","1","1207","11"} );
deleteInternalValence2Verts |polySurface1|polySurfaceShape6;
polyToSubdiv -ap 0 -ch off -aut on -maxPolyCount 1207 -maxEdgesPerVert 11 |polySurface1|polySurfaceShape6;
// Warning: Nothing is selected. Select objects or components to delete. //
// Error: polyToSubdiv1 (Poly To Subdiv Node): The conversion to a subdivision surface failed.
// One or more duplicated edges were present.
// Repair the duplicate edges by selecting the polygon
// and issuing the following command, then try again:
select .e[624] .e[622] ;string $v[] = `polyListComponentConversion -fe -tv`;select $v;polySplitVertex;polyMergeVertex -d 0.0 -tx 1; //
// Error: Command polyToSubdiv failed. Open Script Editor for details. //
// Result: 0 //


Thanks, Bye....