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I can't access anymore two NVivo 12 projects I was working on with my Windows laptop and all that's left of them is .nvb local copies. I found in a previous forum discussion a link to a zip folder ("corrupt dummy projects") to help "resuscitate" the projects from their .nvb copies, but I could not open it when I clicked on it. Could you please help me find out a way to resolve this, I'd be very grateful.

Hi guys, I accidentally deleted my entire project! although I still have a backup file( .nvb) I guess....how can I recover my project from there, does anyone know how ? PLZ help

Hello all - thanks in advance for any help you can give. I am trying to recover a very substantial piece of work urgently. I have coded a number of PDFs in a project called p4 (attached). It will not open. I will paste the error message I get below. I have tried to recover the project by opening the recovery file - this does not work (NVivo crashes/closes). I downloaded the dummy project file for recovery. I got a message to say that recovery had been successful, but then NVivo crashes/closes again. Once again, thanks for any assistance or insight that anyone can offer. Brett - Error message when attempting to open project: Error Message: An item with the same key has already been added. Stack Trace: at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) at QSR.NVivo.Common.Business.Domain.HierarchicalNode.t() at QSR.NVivo.Common.Business.Services.ProjectConnection.a(Folder A_0) at QSR.NVivo.Common.Business.Services.ProjectConnection.a(Folder A_0) at QSR.NVivo.Common.Business.Services.ProjectConnection.j() at QSR.NVivo.Common.Business.Services.ProjectConnection.a(Boolean A_0, String A_1, String A_2, Boolean A_3) at QSR.NVivo.Common.Business.Services.ProjectConnection.a(String A_0, Boolean A_1, String A_2, String A_3, ApplicationConnection A_4, String A_5, Boolean A_6, Boolean A_7) at pz.a(ProjectConnection A_0, String A_1, Boolean A_2, String A_3, String A_4, Boolean A_5, Boolean A_6) --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at vl.a(Exception A_0) at pz.a(String A_0, String A_1, Exception A_2) at pz.a(ProjectConnection A_0, String A_1, Boolean A_2, String A_3, String A_4, Boolean A_5, Boolean A_6) at pz.a(String A_0, Boolean A_1, Boolean A_2, Boolean A_3, ApplicationConnection A_4, String A_5, SimulateServerProjectParams A_6, Boolean A_7, ISummaryContentLengthFinder A_8, Boolean A_9) at QSR.NVivo.Client.Presentation.Forms.NVivoApplication.a(CreateOpenProjectParameters A_0, Boolean A_1, Boolean A_2, ApplicationConnection A_3) at QSR.NVivo.Client.Presentation.Forms.NVivoApplication.a(String A_0, Boolean A_1, Boolean A_2, Boolean A_3, Boolean A_4, ApplicationConnection A_5) at QSR.NVivo.Client.Presentation.Forms.NVivoApplication.a(String A_0, Boolean A_1, Boolean A_2, ApplicationConnection A_3) at QSR.NVivo.Client.Presentation.ViewModels.CentralWelcomeScreenViewModel.OpenSelectedProject(String fileName) at QSR.NVivo.Client.Presentation.ViewModels.CentralWelcomeScreenViewModel.OpenProjectFromRecentList(String fileName) at QSR.NVivo.Client.Presentation.Controls.CentralWelcomeScreenControl.SelectedRecentProject_Clickhandler(Object A_0, MouseButtonEventArgs A_1) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent) at System.Windows.UIElement.OnPreviewMouseUpThunk(Object sender, MouseButtonEventArgs e) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args) at System.Windows.Input.InputManager.ProcessStagingArea() at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport) at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel) at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at QSR.NVivo.Client.Presentation.Forms.Program.b(String[] A_0) at QSR.NVivo.Client.Presentation.Forms.Program.c(String[] A_0) 4b_202008271934.nvb 4b.nvp

Hi all, I've recently lost a project due to a faulty USB-drive. Luckily, I still do have a .nvb-restore-file, but lack a corrupted .nvp-file (that was on that flashdrive...) to start the recovery process. I've found a few topics on this form (such as this one) that provide such a .nvp-file, but as my registration approval has been pending for two days now, I'm trying it here as well. If anybody from QSR could activate my account, or anybody else would be so kind to upload the NVivo 12 .nvp-file from the aforementioned topic to a freely accessible page (Dropbox, WeTransfer, ...), that would be fantastic! Thanks, Bram

As with some other form users, I've been unable to open a project, but have a .nvb file. (When I opened the project, there was an error message, but it disappeared before I could read it). Is it possible to let me know how to recreate the project from the .nvb file? I'm not sure why the project didn't open, but I've noted the advice on how to mitigate against this happening. Many thanks, Gail.