Hello Robin,
Thank you for your answer. I did it all, but it did not help. I found the reason after 2 frustrating weeks, and Jennie confirmed it in her answer https://community.nxp.com/thread/473673 . MCUXpresso can't work without Internet connectivity. I tried to work off-line, after installing MKV46 SDK.
It's a pity that the program does not popup a message that Internet connectivity needed, instead I saw that no MCU selected - without understanding the reason. It could save me a lot of time.
Please put a note to all this product users here ....
Best regards,
Ben