Error with Synology install

I am a networking Noob!

I am trying to install Pi-hole on Docker on my DS716+II and when I login to Pi-hole, I get this error.

FTL failed to start due to bad option at line 1 of /etc/dnsmasq.d/dns-servers.conf

after some research, it seems this is caused by mapping the volumes wrong. I have mapped them several times and I still get that error.

image

I installed this based on this YouTube video

Pi-hole does not create that file.

You may want to seek advice from the video's creator why that file is necessary and how they intend that file to work.

I went through the tutorial again and somehow got it working. I don't know what is different, but it works.