Invoke-NAVApplicationDatabaseConversion error

Staunfeldt1

I am trying to convert a database from BC15 to BC 18.

I have followed this guide to Task4: https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/upgrade/upgrade-unmodified-application-to-v18

I get the error: Invoke-NAVApplicationDatabaseConversion : A technical upgrade of database 'MyDB' on server '***\' cannot be run, because the database�s application version '131050' is greater than or equal to the platform version '131050'.



I have read somewhere that it is just af warning, and I can just go on with the next tasks. But when I reach import version 18 license it shows an error, that The Dynamics 365 Business Central Server Administration tool can only manage version 18.0. The ServerInstance 'MicrosoftDynamicsNavServer$***' is Version '15.0.37898.0'.

I also have made sure restartning powershell and importing version 18 NavAdminTool.ps1 + opening as administrator.

I am not sure it has any relations but platform and application are different in the BC15 I am trying to upgrade:



Any ideas ?

I even asked Microsoft that guided me through different steps. Just to find out they did not know anything. So I learned the hard way not to ask Microsoft.

Instead I tried to upgrade directly to BC19 instead. That worked.

RockWithNAV

Somewhere the Version's the conflicting that's why system prompting this error message. Try With Business Central Admin Shell and invoking this command OR if on some different server can be done.

Developer101

Definitely somewhere there is a conflict as this is not just a warning.