这是什么造成错误啊，各位帮帮忙啊

1>------ 已启动全部重新生成: 项目: 校园导航, 配置: Release Win32 ------
1> stdafx.cpp
1> ClassView.cpp
1> Dlg.cpp
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::Begin”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(41) : 参见“AdjacencyWDigraph<T>::Begin”的声明
1> with
1> [
1> T=int
1> ]
1> Dlg.cpp(146): 参见对正在编译的类 模板 实例化“AdjacencyWGraph<T>”的引用
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::NextVertex”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(42) : 参见“AdjacencyWDigraph<T>::NextVertex”的声明
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::InitializePos”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(39) : 参见“AdjacencyWDigraph<T>::InitializePos”的声明
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::DeactivatePos”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(40) : 参见“AdjacencyWDigraph<T>::DeactivatePos”的声明
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::Vertices”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(30) : 参见“AdjacencyWDigraph<T>::Vertices”的声明
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::Edges”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(29) : 参见“AdjacencyWDigraph<T>::Edges”的声明
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::First”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(43) : 参见“AdjacencyWDigraph<T>::First”的声明
1> with
1> [
1> T=int
1> ]
1>e:\程序\校园导航\校园导航\aw.h(27): warning C4250: “AdjacencyWGraph<T>”: 通过域控制继承“AdjacencyWDigraph<T>::AdjacencyWDigraph<T>::Next”
1> with
1> [
1> T=int
1> ]
1> e:\程序\校园导航\校园导航\awd.h(44) : 参见“AdjacencyWDigraph<T>::Next”的声明
1> with
1> [
1> T=int
1> ]
1> FileView.cpp
1> MainFrm.cpp
1> OutputWnd.cpp
1> PropertiesWnd.cpp
1> ViewTree.cpp
1> 校园导航.cpp
1> 校园导航Doc.cpp
1> 校园导航View.cpp
1>校园导航View.obj : error LNK2005: "int (__cdecl* Old_Handler_)(unsigned int)" (?Old_Handler_@@3P6AHI@ZA) 已经在 Dlg.obj 中定义
1>校园导航View.obj : error LNK2005: "int __cdecl my_new_handler(unsigned int)" (?my_new_handler@@YAHI@Z) 已经在 Dlg.obj 中定义
1>E:\程序\校园导航\Release\校园导航.exe : fatal error LNK1169: 找到一个或多个多重定义的符号
========== 全部重新生成: 成功 0 个，失败 1 个，跳过 0 个 ==========

Dlg.h添加#pragma once看看