Your project may contain some files or folders which contain space in filename. By default, you can not use git add for those files. However, adding single quotes can resolve this problem. Try the following:
git add 'file name or folder name with space'
This instruction is considered as a trick to commit an empty folder to your git repository.
Simply create a
.gitignore file inside that contains the following lines:
# Ignore everything in this directory
# Except this file
Or you can a README file or something like that. It depends on your purpose.