Hi @Benton Chan •
Please check if the requirement version of .net is already installed on each server before the upgrade as mentioned in the link below:
If the .net is ok , and you still have the error ,you can start by upgrade the staging server by following the steps below: :
- Export settings configuration using the following command MigrateSettings.ps1 as mentioned in the following link : Migration process
- Uninstall staging server and reinstall it using the exported json file generated in the previous step
- Switch staging mode between your server
- Uninstall then reinstall the other server using exported file generate in step 1
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