端口转发（NAT UPNP）错误

Question

Im trying to set port forwarding using c#, but I keep getting this error in visual studio.

Interop type 'NATUPNPLib.UPnPNATClass' cannot be embedded. Use the applicable interface instead.

this is the code:

NATUPNPLib.UPnPNATClass upnpnat = new NATUPNPLib.UPnPNATClass();
NATUPNPLib.IStaticPortMappingCollection mappings = upnpnat.StaticPortMappingCollection;
mappings.Add(9099, "UDP", 9099, "192.168.1.101", true, "Local Web Server");

Any Ideas?

I found the code here .

Answer 1

在解决方案资源管理器中找到对NATUPNPLib的引用，选择它，然后在“属性”选项卡中将“嵌入互操作类型”更改为FALSE，然后重建。