upgrade to 5.2.8 error

I just upgraded to 5.2.8
Ater restarting Servoy I get an errormessage:
No application server found at c:\windows\system32..\application_server
Please make sure that you installed Servoy developer correctly.

My assumption is that I have installed Servoy correctly because I never before saw this error.
I also assume that the upgrade process messed things up.

FYI, I did NOT installl the 6.0 beta.

How can I get a fix for this?

Boudewijn,

Developer does not seem to be started with the correct working dir.
It should be /path/to/servoy/developer.

Rob