Error in ./manage_externals/checkout_externals

[huank]

This is my first time installing CESM2 on CentOS 7. When I run ./manage_externals/checkout_externals, I always encounter the following error.
git clone -b release-cesm2.2.2 GitHub - ESCOMP/CESM: The Community Earth System Model my_cesm_sandbox
git tag --list 'release-cesm2*'
git checkout release-cesm2.0.1
./manage_externals/checkout_externals

Processing externals description file : Externals.cfg
Checking status of externals: cam, cice, cime, cism, clm, mosart, pop, rtm, ww3,
Checking out externals: cam, ERROR:root:Command '['svn', 'checkout', '--quiet', '- Revision 91872: /cam1/release_tags/cam_cesm2_0_rel_10/components/cam', '/home/hk/model/CESM/my_cesm_sandbox/components/cam']' returned non-zero exit status 1.
ERROR:root:Failed with output:
svn: E205011: Failure occurred processing one or more externals definitions

ERROR: In directory
/home/hk/model/CESM/my_cesm_sandbox
Process did not run successfully; returned status 1:
svn checkout --quiet - Revision 91872: /cam1/release_tags/cam_cesm2_0_rel_10/components/cam /home/hk/model/CESM/my_cesm_sandbox/components/cam
See above for output from failed command.
Please check the log file manage_externals.log for more details.

ERROR: Failed with output:
svn: E205011: Failure occurred processing one or more externals definitions

ERROR: In directory
/home/hk/model/CESM/my_cesm_sandbox
Process did not run successfully; returned status 1:
svn checkout --quiet - Revision 91872: /cam1/release_tags/cam_cesm2_0_rel_10/components/cam /home/hk/model/CESM/my_cesm_sandbox/components/cam
See above for output from failed command.
Please check the log file manage_externals.log for more details.