AX Retail Pos Error Number 13000 – Could not load all external service modules

Error number 13000, Error when launching Retail POS: could not load all external service modules

Missing dll in the “C:\Program Files (x86)\Microsoft Dynamics AX\60\Retail POS\Connectors” folder.

From Folder => Copying “Microsoft.Dynamics.Retail.TestConnector.dll” from “C:\Program Files (x86)\Microsoft Dynamics AX\60\Client\Bin\Connectors” 

TO Folder=> “C:\Program Files (x86)\Microsoft Dynamics AX\60\Retail POS\Connectors”