你好，下载了fenix git最新的代码： git clone --depth 1 GitHub - khadas/fenix: One-stop script set to build Ubuntu/Debian images
在宿主机Ubuntu 20.04.4 LTS环境编译报错，如下：
Info: Installing linux-headers-amlogic-mainline_1.1.1_arm64.deb in chroot...
Selecting previously unselected package linux-headers-amlogic-mainline.
(Reading database ... 100634 files and directories currently installed.)
Preparing to unpack .../linux-headers-amlogic-mainline_1.1.1_arm64.deb ...
Unpacking linux-headers-amlogic-mainline (1.1.1) ...
Setting up linux-headers-amlogic-mainline (1.1.1) ...
Compiling headers - please wait ...
scripts/Kconfig.include:39: compiler '/home/umhos/tools/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc' not found
make[3]: *** [scripts/kconfig/Makefile:77: syncconfig] Error 1
make[2]: *** [Makefile:628: syncconfig] Error 2
make[1]: *** [Makefile:730: include/config/auto.conf.cmd] Error 2
make[1]: *** [include/config/auto.conf.cmd] Deleting file 'include/generated/autoconf.h'
dpkg: error processing package linux-headers-amlogic-mainline (--install):
installed linux-headers-amlogic-mainline package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
linux-headers-amlogic-mainline
Cleanup...
make: *** [Makefile:2: all] Error 1
请问是什么问题，该如何解决？