Unresolved external和Expected a file name的问题,哪位大侠能指导下？
前两天把一个Delphi工程改成了cBuilder，编译出现如下问题：

[Linker Fatal Error]Fatal:Expected a file name:

然后我重新建一个工程，把东西都拷过去，编译出现如下问题：

Build
[Linker Error] Unresolved external 'Cap_ip::Tcap_ip::' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '__fastcall Cap_ip::Tcap_ip::Tcap_ip(Classes::TComponent *)' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '_cap_ip1' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '_buf_list' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '_filter_str' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '__fastcall Cap_ip::Tcap_ip::~Tcap_ip()' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '__fastcall Cap_ip::Tcap_ip::pause()' referenced from D:\TEST2\MAIN.OBJ
[Linker Error] Unresolved external '__fastcall Cap_ip::Tcap_ip::StartCap()' referenced from D:\TEST2\MAIN.OBJ


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然后我把头文件直接放入main.h中，问题依旧

知道怎么解决的指导一下，谢谢！

[解决办法]
Cap_ip这个类的定义是在哪个文件中？把那个文件加入到工程。