Previous exception:RSRP-64684 Writing a LINQ expression (join t). The intellisense window opened when I hit the 't' and so did the exception window ReSharper 4 Version=4.0.775.22, Edition=, Built=2008-04-11T02:41:30, Configuration=ReSharper_AddIn, VsVersion=9.0 JetBrains.Util.LoggerException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at JetBrains.ReSharper.Daemon.CSharp.Stages.ResolveProblemHighlighter.IncorrectParameterTypeErrorHandler(IReference reference) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\ResolveProblemHighlihter.cs:line 468 at JetBrains.ReSharper.Daemon.CSharp.Stages.ResolveProblemHighlighter.CheckForResolveProblems(IReference reference) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\ResolveProblemHighlihter.cs:line 91 at JetBrains.ReSharper.Daemon.CSharp.Stages.ResolveProblemHighlighter.CheckForResolveProblems(IElement element) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\ResolveProblemHighlihter.cs:line 72 at JetBrains.ReSharper.Daemon.CSharp.Stages.CSharpErrorStageProcessBase.VisitElement(IElement element) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\CSharpDaemonStageBase.cs:line 271 at JetBrains.ReSharper.Daemon.CSharp.Stages.TypeMemberErrorStageProcess.VisitElement(IElement element) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\TypeMemberErrorStage.cs:line 105 at JetBrains.ReSharper.Psi.CSharp.Tree.ElementVisitor.VisitQueryJoinClause(IQueryJoinClause queryJoinClauseParam) in c:\Agent\work\2722e5c3778024b1\src\Gen\Psi\CSharp\ElementVisitor.cs:line 279 at JetBrains.ReSharper.Psi.CSharp.Impl.Tree.QueryJoinClause.Accept(ElementVisitor visitor) in c:\Agent\work\2722e5c3778024b1\src\Gen\Psi\CSharp\Impl\QueryJoinClause.cs:line 21 at JetBrains.ReSharper.Daemon.CSharp.Stages.CSharpDaemonStageProcessBase.ProcessAfterInterior(IElement element) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\CSharpDaemonStageBase.cs:line 124 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 73 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 72 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 72 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 72 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 72 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 72 at JetBrains.ReSharper.Psi.ExtensionsAPI.Tree.TreeElement.ProcessDescendants(IRecursiveElementProcessor processor) in c:\Agent\work\2722e5c3778024b1\src\Psi\src\ExtensionsAPI\Tree\TreeElement.cs:line 72 at JetBrains.ReSharper.Daemon.CSharp.Stages.TypeMemberErrorStageProcess.<ProcessFile>b__0(ICSharpTypeMemberDeclaration decl) in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\TypeMemberErrorStage.cs:line 81 at JetBrains.ReSharper.Daemon.CSharp.Stages.TypeMemberErrorStageProcess.<>c_DisplayClass4.<ProcessFile>b_1() in c:\Agent\work\2722e5c3778024b1\src\Daemon.CSharp\src\Stages\TypeMemberErrorStage.cs:line 92 at JetBrains.ReSharper.Daemon.Impl.DaemonFiberPool.FiberProc() in c:\Agent\work\2722e5c3778024b1\src\Daemon\src\Impl\DaemonFiberPool.cs:line 74 — End of inner exception stack trace — at JetBrains.ReSharper.Daemon.Impl.DaemonFiberPool.FiberProc() in c:\Agent\work\2722e5c3778024b1\src\Daemon\src\Impl\DaemonFiberPool.cs:line 87 column 9 at System.Threading.ThreadHelper.ThreadStart_Context(Object) at System.Threading.ExecutionContext.Run(ExecutionContext, ContextCallback, Object) at System.Threading.ThreadHelper.ThreadStart()