"A more recent version of SmartViews Test is already installed on this computer"

[kmauzoul]

Good Morning,

I'm currently running into this problem with an installer we wrote -

The Upgrade code has remained the same through the life of this, with only the Product Code changes. We created a new project and ported the Upgrade code but the error still persists. Attached is the new project we created from scratch, the log, and screenshots of the registry - the only manual change created here was using the "Upgrade" code from the previous installer so it upgrades -

Registry.png (188.49 KiB) Viewed 1426 times

This is the GUID the log is complaining about being "newer", but the version I have in the installer is 452.3100, and what I have currently installed is 452.2500 - I'm not sure where the hang up is as we've built newer versions of this installer since 452.2500 (452.2600, 452.3000, 452.3001), but 452.3100 is where we're seeing this problem

[Catalin]

Hello,

Most likely, that is happening because you guys are not respecting the format for the "ProductVersion" property.

The format of the string is as follows:

major.minor.build
The first field is the major version and has a maximum value of 255. The second field is the minor version and has a maximum value of 255. The third field is called the build version or the update version and has a maximum value of 65,535.

and this may result in unexpected behavior.

You can read more about this in the following thread I've written some time ago:

A more recent version of X is already installed on this computer - corner case scenario and how to avoid it

Best regards,
Catalin

[kmauzoul]

Catalina -

Thank you ! This is an awesome read and makes perfect sense -

[Catalin]

You are always welcome!

Glad I could help.

Best regards,
Catalin