Hello everybody,
I'm new to ns-3 and may make some newbie mistakes.
After building I got following error.
![](https://lh3.googleusercontent.com/-ITwaHqP74dQ/Ws4xZ03sjrI/AAAAAAAAKdg/nuZXTGsp29UIHCoY651BwHjkcZ4JuwLPgCLcBGAs/s1600/pic_01_class__to_class_template_mismach.jpg)
From the changelog I know that from the version ns-3.26 the "DropTailQueue" class was rebuilt to a template class.
For this reason to change <DropTailQueue> to <DropTailQueue<Packet>>.
After I did that I got following error:
![](https://lh3.googleusercontent.com/-0uiZMoep1GU/Ws4zIXRg9oI/AAAAAAAAKds/7u5fnnTWgXYnylILfVripr9ppGSqEN4_ACLcBGAs/s1600/pic_03_linking_error_GetPacket.jpg)
This happens because the ns3 :: Packet class does not include the function GetPacket.
For this reason, I thought that I should use <DropTailQueue<QueueItem>> instead of <DropTailQueue<Packet>>
Such said such done: After after the change to <DropTailQueue<QueueItem>> the build process pass successful, but Linking make some errors.
The Error is: c++ Undefined reference to 'std::_cxx11::basic_string<char, std::char_....
Can someone help me with this problem?
Best regards,
Friedrich