请求会员non_clas...Vtable，链接器错误？

当我在Win10 x64机器上在Code::BLocks 16.01中构建我的项目(gnu g cc， -std=c++11)时，头文件包含在项目中，我得到以下错误:

path. srcMain.cpp|77|未定义引用' Snmp_pp::UdpAddress::UdpAddress(char const*)'|

path..snmp_ppaddress.h|574|未定义引用' vtable for snmp_pp::UdpAddress'|

我得到很多其他未定义的引用错误。

这是我的代码部分，有很多注释行，我跳过了它们。

main.cpp:

#include <stdio.h>
#include "libsnmp.h"
#include "snmp_pp/snmp_pp.h"
using namespace Snmp_pp;
int main (){
  long rc;
  char buf [256];
  char const* ip_address;
  ip_address = "192.168.127.250";

  Snmp socket_startup();

  //Socket Informationen
   //Here comes line 77***************************
   UdpAddress udp_address(ipaddr);
   snmp_version version = version1;
   int retries = 1;
   int timeout = 100;
   u_short port = 161;
   OctetStr community ("public");
   //SNMP Session öffnen
   int status;
   Snmp snmp(status, 0,(udp_address.get_ip_version()==Address::version_ipv4));
     //SNMP Header Variablen ASN.1 encoding
     Pdu pdu;
     Vb  vb;
      //Erstelle OID Objekte
     Oid oid("1.3.6.1.2.1.1.1.0"); //sysDescr
     vb.set_oid(oid);
     pdu+= vb;
     **Here comes Line 100**
     udp_address.set_port(port);
     **Here comes Line 102**
     CTarget ctarget(udp_address);
     ctartget.set_version(version);
     ctartget.set_retry(retries);
     ctartget.set_timeout(timeout);
     ctartget.set_readcommunity(community);
     SnmpTarget *target;
     target = &ctartget;
     status = snmp.get(pdu, *target);

address.h这是定义的UdpAddress类，这是代码的一部分

 //------------------------------------------------------------------------
 //---------[ UDP Address Class ]------------------------------------------
 //------------------------------------------------------------------------
 class DLLOPT UdpAddress : public IpAddress
 {
  public:
   /**
    * Construct an empty invalid UDP address.
    */
   UdpAddress();
   /**
    * Construct an UDP address from a string.
    *
    * The following formats can be used additional to those recognized by
    * IpAdress:
    * - Port added to IPv4 address with '/' or ':'
    *   ("192.168.17.1:161", "192.168.17.1/161", "printsrv/161")
    * - Port added to IPv6 address with '/' or using '[...]:'
    *   ("::1/162", "[::1]/162", "[::1]:162")
    *
    * @param inaddr - Hostname or IP address
    */
   UdpAddress(const char *inaddr);
   /**
    * Construct an UDP address from another UDP address.
    *
    * @param udpaddr - address to copy
    */
   UdpAddress(const UdpAddress &udpaddr);
   /**
    * Construct an UDP address from a GenAddress.
    *
    * @param genaddr - address to copy
    */
   UdpAddress(const GenAddress &genaddr);
   /**
    * Construct an UDP address from a IP address.
    * The port will be set to 0.
    *
   * @param ipaddr - address to copy
    */
   UdpAddress(const IpAddress &ipaddr);
 /**
   * Return the IP version of the address.
   *
   * @return one of Address::version_type
    */
   virtual version_type get_ip_version() const { return ip_version; }
   /**
    * Construct an UDP address from a GenAddress.
    *
    * @param genaddr - address to copy
    */
     UdpAddress(const GenAddress &genaddr);
   /**
    * Construct an UDP address from a IP address.
    * The port will be set to 0.
    *
    * @param ipaddr - address to copy
    */
   UdpAddress(const IpAddress &ipaddr);
   /**
    * Destructor (ensure that SnmpSyntax::~SnmpSyntax() is overridden).
    */
   ~UdpAddress() {}

包含的头文件来自于SNMP++3.3.7项目中的HP公司
链接到网页
我的文件夹结构是:

main_dirsrcmain.cpp   
main_dirlibsnmp.h   
main_dirsnmp_ppall other header files  

以下是我的构建输出:

  g++.exe -Wall -std=c++11 -g -std=c++11 -I"C:UsersKneringer GeorgDocumentsCodeBlocksSNMP_ZIM" -I"C:UsersKneringer GeorgDocumentsCodeBlocksSNMP_ZIMsnmp_pp" -c "C:UsersKneringer GeorgDocumentsCodeBlocksSNMP_ZIMsrcMain.cpp" -o objDebugsrcMain.o

我需要帮助来理解我做错了什么。我猜这是一个链接器错误