No hash for gradle version

I did I following the steps at Submitting to F-Droid Quick Start Guide | F-Droid - Free and Open Source Android App Repository git clone --depth=1 https://gitlab.com/fdroid/fdroidserver ~/fdroidserver sudo sh -c 'apt-get update &&apt-get install -y docker.io' sudo docker run --rm -itu vagrant --entrypoint /bin/bash \ -v ~/fdroiddata:/build:z \ -v ~/fdroidserver:/home/vagrant/fdroidserver:Z \ registry.gitlab.com/fdroid/fdroidserver:buildserver