searching for text with F3 and as soon as new .cs file opened in the search this errorappeared ReSharper 4 Version=4.0.819.19, Edition=Csharp, Built=2008-06-09T22:00:24, Configuration=ReSharper_AddIn, VsVersion=9.0 JetBrains.Util.LoggerException: Collection has been modified ---> System.InvalidOperationException: Collection has been modified at System.Collections.Generic.HashSet`1.ElementEnumerator.MoveNext() in c:\Agent\work\e9a2fff71e84fb33\Platform\src\Util\src\System.Core\HashSet.cs:line 521 at SafeDevelop.RGreatEx.ContextActions.MarkAsLocalizable.IsAvailableInternal() in d:\Repository\SafeDevelop\Projects\RGreatEx\4.0\1.1.15\SafeDevelop.RGreatEx\ContextActions\MarkAsLocalizable.cs:line 62 at SafeDevelop.RGreatEx.ContextActions.ContextActionBase.IsAvailable(IUserDataHolder cache) in d:\Repository\SafeDevelop\Projects\RGreatEx\4.0\1.1.15\SafeDevelop.RGreatEx\ContextActions\ContextActionBase.cs:line 82 at JetBrains.ReSharper.Daemon.Impl.ContextActionTableImpl.Actions(ISolution solution, ITextControl control, IUserDataHolder cache, CheckForInterrupt checkForInterrupt) in c:\Agent\work\e9a2fff71e84fb33\src\Daemon\src\Impl\ContextActionTableImpl.cs:line 108 at JetBrains.ReSharper.Daemon.Impl.BulbManagerImpl.<>c_DisplayClass11.<AsyncBuildAvailableActionsList>b_c(CheckForInterrupt checkForInterrupt) in c:\Agent\work\e9a2fff71e84fb33\src\Daemon\src\Impl\BulbManagerImpl.cs:line 283 at JetBrains.ReSharper.Daemon.Impl.BulbManagerImpl.<>c_DisplayClass11.<AsyncBuildAvailableActionsList>b_e(CheckForInterrupt checkForInterrupt) in c:\Agent\work\e9a2fff71e84fb33\src\Daemon\src\Impl\BulbManagerImpl.cs:line 302 at JetBrains.ReSharper.Daemon.Impl.BulbManagerImpl.BackgroundContextActionBuilder.Work(CheckForInterrupt interrupt) in c:\Agent\work\e9a2fff71e84fb33\src\Daemon\src\Impl\BulbManagerImpl.cs:line 338 at JetBrains.Application.InterruptableReadActivity.WorkerThreadProc() in c:\Agent\work\e9a2fff71e84fb33\Platform\src\Shell\src\InterruptableReadActivity.cs:line 94 — End of inner exception stack trace — at JetBrains.Application.InterruptableReadActivity.WorkerThreadProc() in c:\Agent\work\e9a2fff71e84fb33\Platform\src\Shell\src\InterruptableReadActivity.cs:line 127 column 5 at System.Threading.ThreadHelper.ThreadStart_Context(Object) at System.Threading.ExecutionContext.Run(ExecutionContext, ContextCallback, Object) at System.Threading.ThreadHelper.ThreadStart()