warning: credential.helper has multiple values error: cannot overwrite multiple values with a single value Use a regexp, --add or --replace-all to change credential.helper. code example
Example: git global username --replace-all
git config --global --replace-all user.name "Your New Name"
git config --global --replace-all user.email "Your new email"
OR
git config --global --unset user.name
git config --global --unset user.email