please commit or stash them before you can merge code example

Example 1: github error “Commit your changes or stash them before you can merge”?

//If you don't care about your local changes, 
//you can switch to other branch temporary (with force), 
//and switch it back, e.g. :
git checkout master -f

Example 2: error: Your local changes to '.gitignore' would be overwritten by merge. Aborting. Please, commit your changes or stash them before you can merge.

git status
git stash
git status