Date: 2019, November 8th
Yesterday I had a really hard time with pulling in a submodule from an old git repository I had laying around. I thought a quick
Finally I found an answer on StackOverflow that didn't quite work, but send me in the right direction. Eventually I gave up the DuckDuckGoing and did what I should have done in the first place: Look at the Git documentation for the submodule command.
The command I ran (from the root of my git folder) that worked for me after I cloned my repository was:
git submodule update --init --recursive
Lesson learned: If there is documentation available, consult that first.