What version of Umbraco are you using?

What version of Examine are you using?

Umbraco 4.5.2, Examine: The version that comes with Umbraco

Can you post the full stack trace?

Error loading IApplication: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: The type initializer for 'Examine.ExamineManager' threw an exception. ---> System.Configuration.ConfigurationErrorsException: The indexSet specified for the LuceneExamineIndexer provider does not exist (ExamineSettings.config line 12) ---> System.ArgumentException: The indexSet specified for the LuceneExamineIndexer provider does not exist     at UmbracoExamine.LuceneExamineIndexer.Initialize(String name, NameValueCollection config)     at System.Web.Configuration.ProvidersHelper.InstantiateProvider(ProviderSettings providerSettings, Type providerType)     --- End of inner exception stack trace ---     at System.Web.Configuration.ProvidersHelper.InstantiateProvider(ProviderSettings providerSettings, Type providerType)     at System.Web.Configuration.ProvidersHelper.InstantiateProviders(ProviderSettingsCollection configProviders, ProviderCollection providers, Type providerType)     at Examine.ExamineManager.LoadProviders()     at Examine.ExamineManager..ctor()     at Examine.ExamineManager..cctor()     --- End of inner exception stack trace ---     at Examine.ExamineManager.get_Instance()     at UmbracoExamine.UmbracoEventManager..ctor()     --- End of inner exception stack trace ---     at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)     at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)     at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)     at System.Activator.CreateInstance(Type type, Boolean nonPublic)     at umbraco.BusinessLogic.Application.RegisterIApplications()

for now i removed the postDate, thank you !

I get a similar error in the Umbraco Log. However I have no special date type included:

Error loading IApplication: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: The type initializer for 'Examine.ExamineManager' threw an exception. ---> System.Configuration.ConfigurationErrorsException: The indexSet specified for the LuceneExamineIndexer provider does not exist (C:\inetpub\umbracoTest\config\ExamineSettings.config line 25) ---> System.ArgumentException: The indexSet specified for the LuceneExamineIndexer provider does not exist     at Examine.LuceneEngine.Providers.LuceneIndexer.Initialize(String name, NameValueCollection config) in C:\Users\Shannon\Documents\Visual Studio 2008\Projects\Examine\Examine\LuceneEngine\Providers\LuceneIndexer.cs:line 118     at UmbracoExamine.BaseUmbracoIndexer.Initialize(String name, NameValueCollection config)     at UmbracoExamine.UmbracoContentIndexer.Initialize(String name, NameValueCollection config)     at System.Web.Configuration.ProvidersHelper.InstantiateProvider(ProviderSettings providerSettings, Type providerType)     --- End of inner exception stack trace ---     at System.Web.Configuration.ProvidersHelper.InstantiateProvider(ProviderSettings providerSettings, Type providerType)     at System.Web.Configuration.ProvidersHelper.InstantiateProviders(ProviderSettingsCollection configProviders, ProviderCollection providers, Type providerType)     at Examine.ExamineManager.LoadProviders() in C:\Users\Shannon\Documents\Visual Studio 2008\Projects\Examine\Examine\ExamineManager.cs:line 53     at Examine.ExamineManager..ctor() in C:\Users\Shannon\Documents\Visual Studio 2008\Projects\Examine\Examine\ExamineManager.cs:line 18     at Examine.ExamineManager..cctor() in C:\Users\Shannon\Documents\Visual Studio 2008\Projects\Examine\Examine\ExamineManager.cs:line 32     --- End of inner exception stack trace ---     at Examine.ExamineManager.get_Instance() in C:\Users\Shannon\Documents\Visual Studio 2008\Projects\Examine\Examine\ExamineManager.cs:line 28     at umbraco.presentation.umbraco.Search.ExamineEvents..ctor()     --- End of inner exception stack trace ---     at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)     at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)     at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)     at System.Activator.CreateInstance(Type type, Boolean nonPublic)     at umbraco.BusinessLogic.Application.RegisterIApplications()

ExamineIndex.config

<?xml version="1.0"?>
<!-- 
Umbraco examine is an extensible indexer and search engine.
This configuration file can be extended to create your own index sets.
Index/Search providers can be defined in the UmbracoSettings.config
More information and documentation can be found on CodePlex: http://umbracoexamine.codeplex.com
-->
<ExamineLuceneIndexSets>
    <!-- The internal index set used by Umbraco back-office - DO NOT REMOVE -->
    <IndexSet SetName="InternalIndexSet" IndexPath="~/App_Data/ExamineIndexes/Internal/">
      <IndexAttributeFields>
        <add Name="id" />
        <add Name="nodeName" />
        <add Name="updateDate" /> 
        <add Name="writerName" />
        <add Name="path" />
        <add Name="nodeTypeAlias" />
        <add Name="parentID" />
      </IndexAttributeFields>
      <IndexUserFields />
      <IncludeNodeTypes/>
      <ExcludeNodeTypes />
    </IndexSet>
  
    <!-- The internal index set used by Umbraco back-office for indexing members - DO NOT REMOVE -->
    <IndexSet SetName="InternalMemberIndexSet" IndexPath="~/App_Data/ExamineIndexes/InternalMember/">
        <IndexAttributeFields>
            <add Name="id" />
            <add Name="nodeName"/>
            <add Name="updateDate" />
            <add Name="writerName" />
            <add Name="loginName" />
            <add Name="email" />
            <add Name="nodeTypeAlias" />
        </IndexAttributeFields>
        <IndexUserFields/>
        <IncludeNodeTypes/>
        <ExcludeNodeTypes />
    </IndexSet>
  
  <!-- Index der skal bruges til search af artikel data på tv2bornholm -->
  <IndexSet SetName="TV2BTekstIndexSet" IndexPath="~/App_Data/ExamineIndexes/TV2BTekst/">
    <IndexAttributeFields>
      <add Name="id" />
      <add Name="nodeName"/>
      <add Name="nodeTypeAlias" />
      <add Name="updateDate" />
    </IndexAttributeFields>
    <IndexUserFields/>
     <!-- <add Name="nyhedslisteMakro" /> -->
    <IncludeNodeTypes/>
    <ExcludeNodeTypes />
  </IndexSet>
</ExamineLuceneIndexSets>

oops sorry my bad I had wrongly named the IndexSet i referenced.

So problem solved (I think)

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