关于在qt中把agent封装成dll

[helloword0501]

qt提示testdll.obj:-1: error: LNK2019: 无法解析的外部符号 "public: __thiscall behaviac::Mutex::Mutex(void)" (??0Mutex@behaviac@@QAE@XZ)，函数 "void __cdecl `dynamic initializer for 'public: static class behaviac::Mutex TList<class behaviac::vector<char *,class behaviac::stl_allocator<char *> > >::ms_mutex''(void)" (??__E?ms_mutex@?$TList@V?$vector@PADV?$stl_allocator@PAD@behaviac@@@behaviac@@@@2VMutex@behaviac@@A@@yaxxz) 中引用了该符号