Subscribing with PGM transport to 'Localhost' causes error

[HydeNaut]

PGM expects only numbers as an IP address by the looks of things

Error: In PgmAddress.Resolve(localhost:5555,True), addrStr (localhost) must be a valid IPAddress.
   at NetMQ.Core.Transports.Pgm.PgmAddress.Resolve(String name, Boolean ip4Only)
   at NetMQ.Core.Transports.Pgm.PgmListener.Init(String network)
   at NetMQ.Core.SocketBase.Bind(String addr)
   at NetMQ.Core.SocketBase.Connect(String addr)
   at NetMQ.NetMQSocket..ctor(ZmqSocketType socketType, String connectionString, DefaultAction defaultAction)
   at _VL_IO_NetMQ_.IO.NetMQ.Subscriber_BYEqKt42Nm1PKcsXNGOzvx.Impl.Update(String Host_In, Transport Transport_In, Int32 Port_In, Boolean Bind_In, String Topics_In, Spread`1& Topic_Out, Spread`1& Data_Out, Boolean& On_Received_Out)
   at _VL_IO_NetMQ_.IO.NetMQ.Subscriber_BYEqKt42Nm1PKcsXNGOzvx.Proxy.Update(String Host_In, Transport Transport_In, Int32 Port_In, Boolean Bind_In, String Topics_In, Spread`1& Topic_Out, Spread`1& Data_Out, Boolean& On_Received_Out)
   at _HowTo_Use_The_ZeroMQ_PublishMSubscribe_Pattern_.Main.HowTo_Use_The_ZeroMQ_PublishMSubscribe_PatternApplication_ECm5sed0BmnLF4Wod7oKUsImpl.Update__TRACE__(PatchTracer __tracer) in C:\Users\Igor\AppData\Local\vvvv\gamma\nugets\VL.IO.NetMQ.0.3.1-alpha\help\Messaging Patterns\HowTo Use The ZeroMQ Publish-Subscribe Pattern.vl.cs:line 104
   at _HowTo_Use_The_ZeroMQ_PublishMSubscribe_Pattern_.Main.HowTo_Use_The_ZeroMQ_PublishMSubscribe_PatternApplication_ECm5sed0BmnLF4Wod7oKUsImpl.Update() in C:\Users\Igor\AppData\Local\vvvv\gamma\nugets\VL.IO.NetMQ.0.3.1-alpha\help\Messaging Patterns\HowTo Use The ZeroMQ Publish-Subscribe Pattern.vl.cs:line 25
   at _HowTo_Use_The_ZeroMQ_PublishMSubscribe_Pattern_.Main.HowTo_Use_The_ZeroMQ_PublishMSubscribe_PatternApplication_ECm5sed0BmnLF4Wod7oKUs.Proxy.Update() in C:\Users\Igor\AppData\Local\vvvv\gamma\nugets\VL.IO.NetMQ.0.3.1-alpha\help\Messaging Patterns\HowTo Use The ZeroMQ Publish-Subscribe Pattern.vl.cs:line 89