周校长:

求助：【步骤3 编译】执行make -j后好多奇奇怪怪的，比如

make[2]: *** [CMakeFiles/ext_poisson.dir/build.make:98: poisson/src/ext_poisson-stamp/ext_poisson-download] Error 1

make[1]: *** [CMakeFiles/Makefile2:1515: CMakeFiles/ext_poisson.dir/all] Error 2

fatal: unable to access 'https://github.com/microsoft/DirectX-Headers.git/': Failed to connect to github.com port 443: Connection timed out

-- Had to git clone more than once:

3 times.

CMake Error at /root/cmake-3.20.2/Open3D/build/uvatlas/tmp/ext_directxheaders-gitclone.cmake:31 (message):

Failed to clone repository:

'https://github.com/microsoft/DirectX-Headers.git'

要怎么解决呀？