if ( b.getNode() instanceof MemberAccessExpressionNode )
{
MemberAccessExpressionNode maex = (MemberAccessExpressionNode)b.getNode();
if ( maex.stemIsPackage() && maex.getLeftOperandNode() instanceof IdentifierNode )
{
return new AccessUndefinedPropertyInPackageProblem(
iNode,
unknown_name,
((IdentifierNode)maex.getLeftOperandNode()).getName()