My UAT logs are filled with the below logs. Could you please direct which area I should start looking to debug this issue.

WARN  Could not find constructor in ReflectionUtil.CreateObject: Sitecore.Data.SqlServer.SqlServerIDTable. The constructor parameters may not match or it may be an abstract class. Parameter info: Count: 1. Parameter types: System.String
Heartbeat 04:42:27 

ERROR Exception in alarm clock event subscriber.
Exception: Sitecore.Exceptions.ConfigurationException
Message: Could not create instance of type: Sitecore.Data.SqlServer.SqlServerIDTable. No matching constructor was found.
Source: Sitecore.Kernel
   at Sitecore.Configuration.Factory.CreateFromTypeName(XmlNode configNode, String[] parameters, Boolean assert)
   at Sitecore.Configuration.Factory.CreateObject(XmlNode configNode, String[] parameters, Boolean assert, IFactoryHelper helper)
   at Sitecore.Configuration.Factory.CreateObject(String configPath, String[] parameters, Boolean assert)
   at Sitecore.Data.IDTables.IDTable.GetKeys(String prefix)
   at Sitecore.ListManagement.ContentSearch.Pipelines.Locking.GetLockedLists.GetLockedLists.Process(GetLockedListsArgs args)
   at (Object , Object[] )
   at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
   at Sitecore.ListManagement.ContentSearch.PipelineBasedContactListStore`2.GetLockedListIds()
   at Sitecore.ListManagement.ListManager`2.GetLockedLists()
   at Sitecore.ListManagement.Analytics.UnlockContactListsAgent.Execute()
   at Sitecore.Services.AlarmClock.Heartbeat_Beat(Object sender, EventArgs e)

1 Answer 1


Looks like your UAT is a Content Delivery Server and the List Manager is not disabled on it.

Taken from the official Sitecore documentation (this one is for 8.2, but it hasn`t changed much from previous versions)

You must completely disable List Manager and Path Analyzer on a content delivery server.

So you will fix the error by removing the /App_Config/Include/ListManagement folder from the CD server.

Also it worth taking a look at the config enable/disable excel spreadsheet that Sitecore Provides for each Sitecore Version.

  • 3
    Also see: sitecore.stackexchange.com/questions/360/…
    – Mark Cassidy
    Oct 22, 2016 at 11:18
  • 2
    To add a little detail to @MarkCassidy comment, Sitecore produces a Config Enable/Disable Config that explains in detail which configs need to be enabled for various roles. It contains a small amount of bugs. For example, it says the ScaledCM.config file should be enabled for CD, but it's really meant for CM. Oct 22, 2016 at 13:39

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