B&R Automation Studio(AS) 4.5.2 was working. I uninstalled previous version of Automation Studio (4.4.4 and 4.3.5). Now AS 4.5.2 does not load and displays error "Exception at pg" "Could not load file or assembly'BR.TechnologyGuarding.Interfaces, V1.0.0.0...."
Automation Studio is fully licensed.
On
Another simple option to fix this problem is to install B&R Technology Guarding again:
After this I was able to start Automation Studio without any problem.
Download from B&R automation the latest PVI Manager (Ex: PVI_4.6.2.58_CD.zip). Run the installation. During the installation check the Drivers/USB: 1TG500.02 (Technology Guarding) box.