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So I maybe found some leading clues about that.
Can I ask that You have SD card in PLC if You trying to do upgrade?
Try to insert some SD card and see what happens then.
And also maybe it depends on automation builder version.
Try upgrade with 2.2 version of automation builder.
Thanks for the reply.
I am using a SD card.
But i didnt try to upgrade from 2.0 to a higher version. Didnt even know 2.2 is allready out.
Maybe Ill try it with a trial version to see if it solves the problem.