This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice This article is not considered official documentation for K2 software and is provided “as is” with no warranties.


When starting the K2 service in console mode, an error appears and the service cannot be started. 



From the K2 Host Server logs, the following error is logged:

"ServerStartError","SourceCode.Hosting.Server.Runtime.HostServerEngine.StartHostServer","2001 Error Starting Host Server: Keyword not supported: '[hostserverconnectionstring];pooling'

Troubleshooting Steps

Should the issue persists after performing a re-configuraton on K2 Blackpearl, kindly follow these steps: 

1. Download a new copy of the 4.6.11 installation package from our K2 Partner & Customer Portal.
2. Run the Blackpearl setup manager and perform a Repair.