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Editorial Team
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Asked: 2026-06-08T20:04:54+00:00

I’m trying to put together a Windows Service, which hosts a WCF service. My

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I’m trying to put together a Windows Service, which hosts a WCF service.
My project structure is as follows:

  • Service
  • Service.Contracts
  • Service.Host
  • Service.Setup

The Service.Host project contains the ProjectInstaller, the Service.Setup project the WindowsInstaller.

Now, everything builds and installs just fine, but when I try to start the service, it immediately stops running with the following message in my event log:

Service cannot be started. System.TypeLoadException: Could not load type 'Service' from 
assembly 'Service, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.
at Host.Service.OnStart(String[] args)
at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state)

When I check the output folder of my setup project I can see both the Service.dll as well as the Service.Contracts.dll… This puts me off guard. How do I debug this when everything builds ok? What to do?

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1 Answer

  1. Editorial Team

    Fixed: stupid error with namespace declarations.

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