"Icon" file in GitHub-managed MATLAB Project

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I am new to both "Projects" and collaborating via GitHub.
In the past few months, I turned an existing project into a Project and later put it under GitHub source control so that a student can begin merging in her contributions.
Somewhere along the way there appeared in the project directory called Icon. It appears in the directory listing on the left of the MATLAB window, and it has a green dot to indicate that it's up-to-date in Git. When I look in the Finder on my Mac, I see no such file. A directory listing using ls -l at the terminal returns:
-rw-r--r--@ 17 roy staff 0 Nov 18 02:50 Icon?
That puts the date as yesterday, which is weird, since I haven't touched the project in a few weeks, and it doesn't help me figure out whether this is related to the Project or to Git/GitHub.
The student is also new to Projects and GitHub. She downloaded the project, made some modifications, and tried to commit her changes within MATLAB. She got the error message
error: invalid path 'Icon?'
fatal: make_cache_entry failed for path 'Icon?'
So, lots of questions.
  • What is Icon?
  • Was it created when I created the project or when I put it under version control?
  • Can I get rid of it?
Mario Malic
Mario Malic on 19 Nov 2020
Edited: Mario Malic on 19 Nov 2020
Can you check on Project tab, Source Control panel - Branches if you are on the latest branch?
Most likely, it should not be an issue if you remove it from the project first.

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Accepted Answer

Roy Goodman
Roy Goodman on 19 Nov 2020
I had not been actively editing so I was on the main branch. I just created a branch to experiment with removing this file and am testing to make sure that this doesn't break anything.
Mario Malic
Mario Malic on 19 Nov 2020
Me as well, it's super neat feature. You're welcome.

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