I got interrupted during this exercise and when I returned I had to restart. Now I get the following error message (I tried using "rm" to remove the file, but the same error message appears, as follows:)
$ git rm scene-2.txt -f
fatal: Unable to create '/home/ccuser/workspace/hamlet-prince-of-denmark/.git/index.lock': File e
If no other git process is currently running, this probably means a
git process crashed in this repository earlier. Make sure no other git
process is running and remove the file manually to continue.
How do I "manually remove the file?" Here's what my screen looks like: