Sdcard.img.gz File doesn't exists

i have downloaded the current version of OpenWrt. I downloaded it by GIT and changed the branch to v21.02.03

After update, install and select the packages the build was compiled successfully

After looking in the directory, i saw, there is no image file for the SD Card.

The same procedure on master build will create the image file for the SD-Card

What option should i activate?

Thank you very much in advice and best regards

Your post is a bit short on info.

What device are you building for? What images were created? What options did you select in the config step (you choose what image to build in menuconfig).

Are you sure you’re not looking for the sysupgrade image?