There is a relatively easy fix for a message from git lfs like:
Encountered n file(s) that should have been pointers, but weren't
If the files in question are already on a
remote and you don't want to rewrite history, run:
git lfs migrate import --no-rewrite path/to/file.ext
This will create a new commit moving
path/to/file.ext to LFS.
If you do need to rewrite history, see the documentation for migrating data to LFS.
To check whether this worked, run:
git lfs ls-files | grep path/to/file.ext
You should see an entry for
path/to/file.ext in the resulting output.