Hi All,

getting errors registered in the umbraco log on a default install when trying to create an external index

[UmbracoExamine] (ExternalIndexer)Error indexing queue items,Object reference not set to an instance of an object., IndexSet: ExternalIndexSet

my settings are as follows:

ExamineSettings.config:

<?xml version="1.0"?>
<!-- 
Umbraco examine is an extensible indexer and search engine.
This configuration file can be extended to add your own search/index providers.
Index sets can be defined in the ExamineIndex.config if you're using the standard provider model.

More information and documentation can be found on CodePlex: http://umbracoexamine.codeplex.com
-->
<Examine>
  <ExamineIndexProviders>
    <providers>
      <add name="InternalIndexer" type="UmbracoExamine.UmbracoContentIndexer, UmbracoExamine"
           supportUnpublished="true"
           supportProtected="true"
           interval="10"
           analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"/>

      <add name="InternalMemberIndexer" type="UmbracoExamine.UmbracoMemberIndexer, UmbracoExamine"
           supportUnpublished="true"
           supportProtected="true"
           interval="10"
           analyzer="Lucene.Net.Analysis.Standard.StandardAnalyzer, Lucene.Net"/>

        <!-- default external indexer, which excludes protected and unpublished pages-->
        <add name="ExternalIndexer" type="UmbracoExamine.UmbracoContentIndexer, UmbracoExamine"
            supportUnpublished="false"
            supportProtected="true"
            interval="10"
            analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"/>
    </providers>
  </ExamineIndexProviders>

  <ExamineSearchProviders defaultProvider="ExternalSearcher">
    <providers>
      <add name="InternalSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
           analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"/>

      <add name="ExternalSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
             analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net" enableLeadingWildcards="true"/>

      <add name="InternalMemberSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
           analyzer="Lucene.Net.Analysis.Standard.StandardAnalyzer, Lucene.Net" enableLeadingWildcards="true"/>
    </providers>
  </ExamineSearchProviders>

</Examine>

<?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/TEMP/ExamineIndexes/Internal/"/>

  <!-- The internal index set used by Umbraco back-office for indexing members - DO NOT REMOVE -->
  <IndexSet SetName="InternalMemberIndexSet" IndexPath="~/App_Data/TEMP/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>
  </IndexSet>

  <!-- Default Indexset for external searches, this indexes all fields on all types of nodes-->
    <IndexSet SetName="ExternalIndexSet" IndexPath="~/App_Data/TEMP/ExamineIndexes/External/">
        <IndexAttributeFields>
            <add Name="id" />
            <add Name="nodeName" />
        </IndexAttributeFields>
        <IndexUserFields>
            <add Name="title" />
            <add Name="description" />
            <add Name="bodyText" />
            <add Name="headline" />
            <add Name="author" />
            <add Name="introFull" />
            <add Name="introShort" />
            <add Name="sector" />
            <add Name="cityTags" />
            <add Name="topicTags" />
            <add Name="photoLabel" />
        </IndexUserFields>
        <IncludeNodeTypes/>
        <ExcludeNodeTypes>
            <add Name="PromotionItem" />
            <add Name="NewsDateFolder" />
        </ExcludeNodeTypes>
    </IndexSet>
</ExamineLuceneIndexSets>

'

I would really appreciate any help on this one I've tried explicitly adding the indexSet attribute with the name etc and still can't get umbracoexamine to generate an index.

Thanks