Error: Unable to download libxml2-2.9.7.tar.gz

[sonlv-enguys]

Hi

I process success

git clone https://github.com/cernekee/ics-openconnect
cd ics-openconnect
git submodule init
git submodule update

but call make -C external error

Unable to download libxml2-2.9.7.tar.gz

What do I have to do to handle it. Help me

[devicelocksmith]

Make sure curl is installed