Why did Git stop seeing new files in a project?

Question

git

There are 2 branches dev and master.
I successfully merge branches, but there are files in the dev branch that are not in the master, although I did git add --all
Why does the master branch not receive them when merging and how to fix this?

Answer 1

Check the .gitignore file

Answer 2

You can try doing "git add ." or "git add *"