Qlik Web Connector: QWC Service does not start

[Nao_Baba]

Starting the Qlik Web Connector (QWC) fails with the following error: 

Windows could not start the Qlik Web Connectors service on Local Computer.

Error 1064: An exception occurred in the service when handling the control request.

Resolution

1. Open the Windows Task Manager and switch to the Details tab
2. Find QlikWebConnectorSVC.exe, which will already be running 
3. Right-click the process and choose End task to terminate the process
   
   
   
   
4. Start the Web Connector service

Cause

The QlikWebConnectorsQVC.exe is already running. 

The Windows Event logs (Application log) you will have recorded the following errors:

Service cannot be started. APIConnectorInterfaces.Exceptions.QwcException: MULTIPLE_INSTANCES_NOT_PERMITTED at QlikWebConnectorsService.Service.OnStart(String[] args) at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state)

This most frequently happens after setting up the Web Connector Service as a Windows service. See Setting up the Qlik Web Connectors to run as a Service.

Environment

• Qlik Web Connectors