Error when compiling kernel

Good afternoon! I have a rock pi 5b. I have a error with compiling kernel. Compilation is running on debian 11 5.10.0-23-amd64. Help me, please. to compile kernel

Looks like your cross compilation Toolchain isn’t setup, aka you don’t have the compiler for the rock 5s aarch64 platform or the make script can’t find it. There’s a step by step guide on the rock 5 b wiki, I suggest you go through the steps there

Ok. Thank you. After following the steps you suggested, a new error appeared. What can I do?

You need the dosfstools package:
dosfstools: /sbin/mkfs.vfat

https://packages.debian.org/search?searchon=contents&keywords=mkfs.vfat&mode=path&suite=stable&arch=amd64

Dosfstools is already installed. The error still exists

What does

which mkfs.vfat

Say?

May have messed up $PATH with this line:
export PATH="/usr/local/gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu/linux-x86/aarch64/gcc-arm-10.3-2021.07-x86_64-aarch64-none-linux-gnu/bin:$PATH" if it is not entered correctly.

echo $PATH

mkfs.vfat should be in $PATH