build externals error

./athena/Projects/DetCommon/build_externals.sh
/home/aikoulou/athenaARM2/athena/Projects/DetCommon/../../Build/AtlasBuildScripts/checkout_project_externals.sh: line 85: /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/aarch64-Linux/Cmake/3.20.2/Linux-aarch64/bin/cmake: cannot execute binary file
Downloading CMake code for DetCommon in: /home/aikoulou/athenaARM2/build
tee: /home/aikoulou/athenaARM2/build/src/checkout.atlasexternals.log: No such file or directory
Checking out atlasexternals tag/branch: 2.0.107
   from: https://gitlab.cern.ch/atlas/atlasexternals.git
Cloning into '/home/aikoulou/athenaARM2/build/src/atlasexternals'...
/home/aikoulou/athenaARM2/build/src/atlasexternals /home/aikoulou/athenaARM2
/home/aikoulou/athenaARM2
Note: switching to '2.0.107'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at d1b8f94 Merge branch 'LCG_100_Updates-master-20210510' into 'master'
TIMESTAMP::EXTERNALS_CHECKOUT:: 1 ::
DetCommon external setup encountered 1 error(s)