complier differnt

[tomato]

warning: the compiler differs from the one used to build the kernel
  The kernel was built by: aarch64-linux-gnu-gcc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
  You are using:           gcc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
  CC [M]  /root/gtp5g/src/gtp5g.o
/bin/sh: 1: scripts/basic/fixdep: Exec format error

I have this problem. I use Pythiton D2000 as cpu.