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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / NAV Not Opening
Small and medium business | Business Central, N...
Answered

NAV Not Opening

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Posted on by wilson0194 5

Having issues opening NAV. Won't even open. Details below:

Description
Faulting Application Path: C:\Program Files (x86)\Microsoft Dynamics 365 Business Central\130\RoleTailored Client\Microsoft.Dynamics.Nav.Client.exe
Creation Time: 4/5/2022 12:29:09 PM
Problem: Stopped working
Status: Report sent

Problem signature
Problem Event Name: CLR20r3
Problem Signature 01: Microsoft.Dynamics.Nav.Client
Problem Signature 02: 13.0.27183.0
Problem Signature 03: 5c34ff5e
Problem Signature 04: Microsoft.Dynamics.Nav.Client.WinClient
Problem Signature 05: 13.0.27183.0
Problem Signature 06: 5c34fea0
Problem Signature 07: 2c
Problem Signature 08: 0
Problem Signature 09: System.NullReferenceException

Extra information about the problem
Bucket ID: 9381d5621e1621fdd2905c22374210b4 (1337670391354757300)

I have the same question (0)
  • SteveJay Profile Picture
    SteveJay 10 on at

    Same error message and proceeding your message we also get the following.

    Application: Microsoft.Dynamics.Nav.Client.exe

    Framework Version: v4.0.30319

    Description: The process was terminated due to an unhandled exception.

    Exception Info: System.NullReferenceException

      at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.FindMajorVersion(Microsoft.Win32.RegistryKey)

      at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.<.ctor>b__8_0(Microsoft.Win32.RegistryKey)

      at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.FindRegistryKey(Microsoft.Win32.RegistryHive, System.String, System.Action`1<Microsoft.Win32.RegistryKey>)

      at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.FindFirstRegistryKey(System.String, System.Action`1<Microsoft.Win32.RegistryKey>)

      at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService..ctor(Microsoft.Dynamics.Framework.UI.UISession)

      at Microsoft.Dynamics.Nav.Client.WinClient.NavWinFormsClientSession+<>c.<AddServices>b__22_6(Microsoft.Dynamics.Framework.UI.UISession)

      at Microsoft.Dynamics.Framework.UI.ClientSessionCore.AddUIService(System.Func`2<Microsoft.Dynamics.Framework.UI.UISession,Microsoft.Dynamics.Framework.UI.IUIService>)

      at Microsoft.Dynamics.Nav.Client.WinClient.NavWinFormsClientSession.AddServices()

      at Microsoft.Dynamics.Framework.UI.ClientSessionCore.Prepare()

      at Microsoft.Dynamics.Nav.Client.WinClient.StartWinFormsClient.SetupClientSession()

      at Microsoft.Dynamics.Nav.Client.WinClient.StartWinFormsClient.RunCore()

      at Microsoft.Dynamics.Nav.Client.WinClient.StartWinFormsClient.Run(Boolean)

      at Microsoft.Dynamics.Nav.Client.Program.Main(System.String[])

  • Suggested answer
    Inge M. Bruvik Profile Picture
    Inge M. Bruvik 1,165 Moderator on at

    Maybe you need to try to re-install the NAV client?

  • Suggested answer
    YUN ZHU Profile Picture
    YUN ZHU 99,084 Super User 2026 Season 1 on at

    Hi, It looks like a client-side problem, you can try to repair it with the same version of the installation package.

    pastedimage1649202866877v1.png

    Hope this will help.

    Thanks.

    ZHU

  • Suggested answer
    Nitin Verma Profile Picture
    Nitin Verma 21,794 Moderator on at

    Hi wilson0194 ,

    Please try to Uninstall the product and then delete the directory from C: Driver and install it again.

    Thanks.

  • Suggested answer
    Nitin Verma Profile Picture
    Nitin Verma 21,794 Moderator on at

    Please consider it C: drive.

  • ThomasRz Profile Picture
    ThomasRz 10 on at

    Hi.

    we have the same problem since this morning with one of our customers with NAV2017. It seems that after a reboot the RTC is no longer running. We have the problem on multiple Client PCs. Same error in the EventLog. Reinstalling, repairing... did not work for us. Maybe it is an Windows Update or an Office Update.

    Have you found a solution for the problem?

    Kind regards

    Thomas

  • Suggested answer
    SteveJay Profile Picture
    SteveJay 10 on at

    We did an office repair and it seems to have cleared the problem.  I see more specific solutions about changing registry settings but the Office Update worked as well.

    This is the more targeted fix.

    Excel key is missing from Registry Editor. Just add it under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\App Paths.

  • ThomasRz Profile Picture
    ThomasRz 10 on at

    I found a solution here: www.msdynamics.de/viewtopic.php. In our case the Office Repair Tool fixed the problem.

    Thomas

  • Suggested answer
    wilson0194 Profile Picture
    wilson0194 5 on at

    The targeted fix worked for me. I was able to resolve the issue by adding the Excel key to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\App Paths

    and then setting the default key data value to the Excel.exe path.

    Thanks for the help.

  • Verified answer
    Marco Mels Profile Picture
    Marco Mels Microsoft Employee on at

    You all seem to have nailed this one! Great job.

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