Hello,

I made a WinCC Professional project (for a PC HMI, RT Pro on destination machine) which is compiled and simulated on engineering machine without problem. All programs are v16.
I tried to transfer that project using this manual, but it returns an error:

Where is the problem?

It works now.

I had opened two different projects in two TIA Portal instances and simulator for one CPU.

I don't know which of these issues made a problem, but when I closed all of them (except the project which I wanted to transfer), it worked normally.