Hello, I am trying to build the propellor package using sbuild

but I got this error message during the build.

Source tarball created: dist/propellor-2.5.0.tar.gz
cat dist/propellor-*.tar.gz | (cd dist/gittmp && tar zx --strip-components=1)
# cabal sdist does not preserve symlinks, so copy over file
cd dist/gittmp && for f in $(find -type f); do rm -f $f; cp -a ../../$f $f; done
cd dist/gittmp && git init && \
        git add . \
        && git commit -q -m "distributed version of propellor" \
        && git bundle create /«PKGBUILDDIR»/debian/propellor/usr/src/propellor/propellor.git master HEAD \
        && git show-ref master --hash > /«PKGBUILDDIR»/debian/propellor/usr/src/propellor/head
Initialized empty Git repository in /«PKGBUILDDIR»/dist/gittmp/.git/
*** Please tell me who you are.
Run
  git config --global user.email "you@example.com"
  git config --global user.name "Your Name"

to set your account's default identity.
Omit --global to set the identity only in this repository.

fatal: unable to auto-detect email address (got 'root@mordor.(none)')
make[1]: *** [install] Error 128
Makefile:13: recipe for target 'install' failed
