Comments by hifale7161 (Top 1 by date)

I followed your hint to try to find out which component or feature that was accidentally included that was not supported in the old version of iOS. I was unable to identify which component or feature within my project. Therefore, I rebuild the whole project from scratch and carefully select the components and features and this time was a success. It gets uploaded to appstore without error. And the minimum deployment target iOS is set to 10.

Until now, I still have no idea which component or feature from the previous build raised the conflict of minimum iOS version. But nonetheless, the problem solved. thanks for the hint.