ArtSimple1 - removed the working copy of ArtSimple1/,
then restored it using 'git reset --hard origin/master'
which restored the entire project dir/subdirs.
Then ran Android Studio again, told it to rebuild, then debug
on the emulator. Only 1 file changed, .idea/workspace.xml.
Checked this back in.
BELIEVE that this shows how to capture a project's files
and what can be ignored.
SO LOOK AT THE .gitignore files at each level in the
project to see what they are ignoring.