fatal: invalid reference: master

Encountered an error when running cmake -B build:

Scanning dependencies of target gs-cmake-populate
[ 11%] Creating directories for 'gs-cmake-populate'
[ 22%] Performing download step (git clone) for 'gs-cmake-populate'
Cloning into 'gs-cmake-src'...
warning: You appear to have cloned an empty repository.
fatal: invalid reference: master
CMake Error at gs-cmake-subbuild/gs-cmake-populate-prefix/tmp/gs-cmake-populate-gitclone.cmake:40 (message):
Failed to checkout tag: 'master'

make[2]: *** [CMakeFiles/gs-cmake-populate.dir/build.make:92: gs-cmake-populate-prefix/src/gs-cmake-populate-stamp/gs-cmake-populate-download] Error 1
make[1]: *** [CMakeFiles/Makefile2:76: CMakeFiles/gs-cmake-populate.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

CMake Error at /usr/share/cmake-3.16/Modules/FetchContent.cmake:915 (message):
Build step for gs-cmake failed: 2
Call Stack (most recent call first):
/usr/share/cmake-3.16/Modules/FetchContent.cmake:1006 (__FetchContent_directPopulate)
/usr/share/cmake-3.16/Modules/FetchContent.cmake:1047 (FetchContent_Populate)
CMakeLists.txt:27 (FetchContent_MakeAvailable)

-- Configuring incomplete, errors occurred!

Cause of the error is upon cloning the "cmake-boilerplate" repository by running the follow code, an empty directory was obtained.

  execute_process(
    COMMAND "/usr/bin/git"  clone --no-checkout "https://gitclone.com/github.com/quic/cmake-boilerplate.git" "gs-cmake-src"
    WORKING_DIRECTORY "/home/fjwei/git_repo/qbox/build/_deps"
    RESULT_VARIABLE error_code
    )

Could you please advise on how to resolve this problem?

Start at CMakeLists.txt:27 and inspect the FetchContent configuration for the cmake-boilerplate repository and its requested master reference. Re-run cmake -B build while checking whether the clone produces an empty gs-cmake-src directory; done means dependency fetching completes and configuration proceeds without the invalid-reference error.