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"Invoke-NAVApplicationDatabaseConversion" issue while upgrade database from BC24 to BC25

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Posted on by CU28020941-0

Hello,

I am upgrade BC24 to BC25. in that process i have faces some issue regarding DLL file.

Steps : 1

#Import Module
Import-Module 'C:\Program Files\Microsoft Dynamics 365 Business Central\240\Service\NavAdminTool.ps1'

Steps : 2

#Uninstall Extensions from BC 24
Get-NAVAppInfo -ServerInstance BC240 -Tenant default | % { Uninstall-NAVApp -ServerInstance BC240 -Tenant default -Name $_.Name -Version $_.Version -Force}

Steps : 3

#Unpublish Extensions from BC 24
Get-NAVAppInfo -ServerInstance BC240 | % { Unpublish-NAVApp -ServerInstance BC240 -Name $_.Name -Version $_.Version}

Steps : 4

#Remove Symbols
Get-NAVAppInfo -ServerInstance BC240 -SymbolsOnly | % { Unpublish-NAVApp -ServerInstance BC240 -Name $_.Name -Version $_.Version }

Steps : 5

#Stop Service
Stop-NAVServerInstance -ServerInstance BC240

after step : 5 i will install BC25 and it will successfully installed in my system after that i will perform below steps

Steps : 6

#Import Module
Import-Module 'C:\Program Files\Microsoft Dynamics 365 Business Central\250\Service\NavAdminTool.ps1'

Steps : 7

#Convert the application database to version 25
Invoke-NAVApplicationDatabaseConversion -DatabaseServer "DESKTOP-SAEHFRV\SQLEXPRESS" -DatabaseName LocalDB_DAV

in above step: 7 it will give below error Like:

WARNING: UnhandledErrorMessage
Invoke-NAVApplicationDatabaseConversion : Could not load file or assembly 'Microsoft.Bcl.AsyncInterfaces, Version=8.0.0.0,
Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. Could not find or load a specific file. (0x80131621)
At line:1 char:1
+ Invoke-NAVApplicationDatabaseConversion -DatabaseServer "DESKTOP-SAEH ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Invoke-NAVApplicationDatabaseConversion], FileLoadException
+ FullyQualifiedErrorId : System.IO.FileLoadException,Microsoft.Dynamics.Nav.Management.Cmdlets.InvokeNAVApplicationDat
abaseConversion

for above error i have checked that

.NET 8 is installed
DLL exists in BC service folder - :\Program Files\Microsoft Dynamics 365 Business Central\250\Service\Microsoft.Bcl.AsyncInterfaces.dll
PowerShell version is correct

Categories:

Dynamics 365 Business Central

Dynamics 365 Business Central migration

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Gerardo Rentería Ga... 26,844 Most Valuable Professional on at

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Hi, good day
I hope this can help you, and give you some hints.

Business central Upgrading Microsoft System and Base Application from 24 to Version 25

Error creating BC25 container with database on host machine · Issue #3695 · microsoft/navcontainerhelper

Best Regards
Gerardo

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OussamaSabbouh 16,699 Super User 2026 Season 1 on at

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Hello ,

This is usually not a database issue but a BC25 PowerShell/module loading issue: Microsoft’s upgrade step is to run Invoke-NAVApplicationDatabaseConversion from the Business Central 25 Administration Shell, and when you get Microsoft.Bcl.AsyncInterfaces, Version=8.0.0.0 not loading, it normally means the session is using a mixed/incorrect module dependency chain rather than the clean BC25 one, so the practical fix is to open a fresh BC25 Administration Shell as Administrator, do not import BC24 and BC25 admin modules in the same PowerShell session, make sure only the BC25 management module is loaded, then rerun the conversion; if it still fails, repair/reinstall the BC25 service tier/admin shell because the DLL may exist in the folder but the shell is still not resolving it correctly.

Regards,
Oussama Sabbouh

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SP-14040400-0 20 on at

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Thaks @Gerardo Rentería García

i have tried as you suggest but still getting same erro.

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SP-14040400-0 20 on at

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Hello @OussamaSabbouh,
thanks for replaying,

First, I am opening BC24 Administration Shell as Administrator for Uninstall and Unpublish all app. After that i am opening BC25 Administration Shell as Administrator for "Invoke-NAVApplicationDatabaseConversion" but it will give same dll error. So getting same error i will Uninstall CU25 -> Restart system ->ReInstall CU25 and go with above step but still getting Same error.

There is any other process for IN Version?

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Kamal Khakhkhar 3,357 on at

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Hii there as per requirement we had update our data base from 19 to 25 .

for this you can get reference from below link
https://youtu.be/1T_53R96quo?si=w8O19ux8MIekLFzW

we also had followed the same .

if you found answer mark it verified.

Thank You.
Kamal Khakhkhar

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SP-14040400-0 20 on at

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Hello @Kamal Khakhkhar,

Thanks for sharing your input.

As follow steps which shows in Video, bellow same error occur.

PS C:\WINDOWS\system32> Invoke-NAVApplicationDatabaseConversion -DatabaseServer "DESKTOP-SAEHFRV\SQLEXPRESS" -DatabaseName LocalDB_DAV
WARNING: UnhandledErrorMessage
Invoke-NAVApplicationDatabaseConversion : Could not load file or assembly 'Microsoft.Bcl.AsyncInterfaces, Version=8.0.0.0,
Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. Could not find or load a specific file. (0x80131621)
At line:1 char:1
+ Invoke-NAVApplicationDatabaseConversion -DatabaseServer "DESKTOP-SAEH ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Invoke-NAVApplicationDatabaseConversion], FileLoadException
+ FullyQualifiedErrorId : System.IO.FileLoadException,Microsoft.Dynamics.Nav.Management.Cmdlets.InvokeNAVApplicationDat
abaseConversion

Thank You,

Sachin

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Kamal Khakhkhar 3,357 on at

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Hii there
please uninstall all extensions from BC 24 . after that unpublish extensions .
once its done stop service of BC 24 . and in new command pallet do the next steps .
here i attached step sample for reference.

please do like below .
if you found answer mark this verified .

Thank You .
Kamal Khakhkhar.

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SP-14040400-0 20 on at

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Hii @Kamal Khakhkhar,

I have tried same script but error not resolved.

Regards,

Sachin

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