Looks like Linux Distro Sources and Toolchain links are broken.
Linux Distro Source points only to archive with Yocto downloads directory contents, but not to Yocto recipes tree. Toolchain links are points only to some custom scripts, but not for ARM-gcc compiler and related.
Can you provide correct links to download files to be able to build customized Linux image. In my project I’m using Qt5Core library. It is absent in default image.
There is still the problem with traversing symlinks with repo tool. Old repo version is not working anymore. It requires python2 while swi-linux-src/.repo/repo/main.py requires python3. New version stops with “swi-linux-src/kernel/arch/arm/mach-msm: traversing symlinks not allow”.