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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > JobEngine v2 stopped and cannot be started | Could not load file or assembly 'System.Data.SqlServerCe

JobEngine v2 stopped and cannot be started | Could not load file or assembly 'System.Data.SqlServerCe

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Updated June 29th, 2018


This article will show how to resolve problems with JobEnginev2 stopped and cannot be started with the error message below.


Jobenginev2 service log:

2018-06-20 12:32:10,761 [8] FATAL SolarWinds.JobEngine.ServiceProcess.SolarWindsService - (null)  OnStart: Unhandled exception caught
System.IO.FileNotFoundException: Could not load file or assembly 'System.Data.SqlServerCe, Version=, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
File name: 'System.Data.SqlServerCe, Version=, Culture=neutral, PublicKeyToken=89845dcd8080cc91'
   at SolarWinds.JobEngine.Data.SqlCeHelper.Verify()
   at SolarWinds.JobEngineService.v2.JobEngineServiceApp.VerifyDatabaseConsistencyAndVersion()
   at SolarWinds.JobEngineService.v2.JobEngineServiceApp.Start(ServiceOperationMode operationMode, CommunicationSettings settings)
   at SolarWinds.JobEngineService.v2.JobEngineServiceApp.Start()
   at SolarWinds.JobEngine.ServiceProcess.SolarWindsService.ServiceStart()


  • All NPM versions


Download and install Microsoft SQL CE and take note what version is being displayed on the logs. In this case, it is Version


Download and install Microsoft SQL CE 3.5 (© 2018 Microsoft, available at, obtained on June 29, 2018.)

Download and Install Microsoft SQL CE 4.0 (© 2018 Microsoft, available at, obtained on June 29, 2018.)




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