Compilation and Installing error of new Linux 5.12.14

[abdulhakimluthfi]

currently I am trying to compile the new linux kernel 5.12.14 into my ALT Linux 9.1(x86_64) with Linux 5.10.31. i encounter problem with build essential first since it is not available. then it solved by downloading the individual package. the problem there are error when i use make install.

i tried to copy the file into the boot folder, but there are new issue.