

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Unexpected error during configuration: System.NullReferenceException Error
Hello experts,
Could someone help me with the following error, please?
In my test environment I was working on how to rollback a backup of my Postgres database in order to restore if, for any reason like an upgrade the installation or files get corrupted, we can just restore the backup, so what I did was the following:
- Create a backup of my Postgres database and the certificates
- I Upgraded from 2019 November patch 4 to 2020 September patch 4 release
- I Uninstalled September 2020 release
- I Installed the November 2019 release (here is where I got the error)
After this, I cannot go further than this, also I tried to install the September 2020 release but I don't have luck, you can see the error in the zip file attached
@Giuseppe_Novello any idea?
My SO version is windows server 2012 R2
Thanks and regards!

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Click " View log folder" > look for the last log prior it had "_rollback" , possible "dispatcher" > Search "value 3" and this will tell you the actual of why it failed.
cheers.
Principal Technical Support Engineer @ Qlik

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Resolution:
For September 2018 and newer:
Option 1:
- Open the Local Security Policy module
- Right Click on Run > secpol.msc
- Navigate to Local Policies > User Rights Assignment:
- Allow log on locally: Ensure that the Qlik Sense Service account is provisioned this right
- Deny log on locally: Ensure that the Qlik Sense Service account is not listed there, either directly by name or indirectly by group membership
- Complete installation of Qlik Sense
- (Optional): Revert the changes to the rights assignment post installation
Option 2:
- Install Qlik Sense November 2017 and upgrade to the desired build of Qlik Sense
Option 3:
Install Qlik Sense using its silent installation syntax. See Performing a silent installation with the skipvalidation parameter.
