copy this into the command line and hit enter then try again.

select .e[1423] .e[1422] .e[1421] .e[1420] .e[1419] .e[1418] .e[1417] .e[1416] .e[1415] .e[1414] ;string $v[] = `polyListComponentConversion -fe -tv`;select $v;polySplitVertex;polyMergeVertex -d 0.0