Error while Opening AX 2012 R2 Retail POS: could not load all external service modules

When I setup device information on hardware profile and run the N-jobs, the following error appears on POS screen and it won’t let me open POS:


Connector TestConnector not found!

SystemCore: System.Exception: Processor not found.
at Microsoft.Dynamics.Retail.SDKManager.PaymentProcessorManager.GetPaymentProcessor(String name)
at Microsoft.Dynamics.Retail.Pos.EFT.PaymentSDKProcessor.GetEftPaymentProcessor(String connectorName)
at Microsoft.Dynamics.Retail.Pos.EFT.PaymentSDKProcessor.GetEftProcessorServices(String connectorName)
at Microsoft.Dynamics.Retail.Pos.EFT.EFT.Initialize()
at Microsoft.Dynamics.Retail.Pos.SystemCore.Services.Initialize()
at Microsoft.Dynamics.Retail.Pos.SystemCore.PosApplication.Initialize().