error: pathspec 'v5.15.137' did not match any file(s) known to git.

[LPXingxing]

I followed the following steps to build kernel code. But it reports that it cannot find v5.15.137 branch.

Can you help check how to solve this?
 
git clone https://github.com/intel/linux-kernel-overlay.git
cd linux-kernel-overlay
git checkout lts2021-ubuntu
./build.sh

= [up to date] mainline-tracking-overlay-v6.7-rc3-ubuntu-231129T100251Z -> mainline-tracking-overlay-v6.7-rc3-ubuntu-231129T100251Z
= [up to date] mainline-tracking-overlay-v6.7-rc3-ubuntu-231206T020418Z -> mainline-tracking-overlay-v6.7-rc3-ubuntu-231206T020418Z
= [up to date] mainline-tracking-overlay-v6.7-ubuntu-240110T080436Z -> mainline-tracking-overlay-v6.7-ubuntu-240110T080436Z

• git checkout v5.15.137
  error: pathspec 'v5.15.137' did not match any file(s) known to git.
• popd
  ~/test3/linux-kernel-overlay
• pushd /home/ubuntu/test3/linux-kernel-overlay/build/linux-kernel-v5.15.137
  ~/test3/linux-kernel-overlay/build/linux-kernel-v5.15.137 ~/test3/linux-kernel-overlay
• rm '/home/ubuntu/test3/linux-kernel-overlay/build/linux-kernel-v5.15.137/../*.deb'

[dvintel]

I'm not part of the team, so take this with a grain of salt...
but did you possibly mean this?
"lts-overlay-v5.15.137-ubuntu-231030T054931Z" lts-overlay-v5.15.137-ubuntu-231030T054931Z