mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
newNodes[ is2ndV ? newNodes.size()-1 : 0 ] = (SMDS_MeshNode*) n;
+ if ( !n )
+ return toSM( error( TCom("No node on vertex #") << meshDS->ShapeToIndex( v )));
}
// compute nodes on target EDGEs