Error on command docker-compose up -d

I am setting up CMS on a Ubuntu 18.04.3 and I follow the instructions on your website:
https://xibo.org.uk/docs/setup/xibo-2-1-0-with-docker-on-ubuntu-18-04

I follow the instructions exact. When I get to the part mention below I get an error message. See attachment and below

Now bring the CMS up

docker-compose up -d

line 1: syntax error near unexpected token ‘<’
line 1 :Malformed request

Then it does nothing

You did not get the correct docker file, you downloaded HTML file. Check file content and redownload it again

I reloaded Ubuntu and ran all the proper command and now a get message that the proper configuration file is not found. I ran all the correct commands and still no luck. Do I need to download the files directly to a usb drive and copy them to the location?

I obtain an error that says that docker-compose can’t find any configuration file

You need to be inside the folder with compose file, so if you are going through instructions you need to
mkdir /opt/xibo
cd /opt/xibo
wget https://github.com/xibosignage/xibo-cms/releases/download/2.1.1/xibo-docker.tar.gz
tar --strip 1 -zxvf xibo-docker.tar.gz

Make sure that you are in /opt/xibo when you run docker-compose up

Can you post a screenshot showing the files in your /opt/xibo directory please?

Many Thanks.

I was in the correct folder and had the correct files. I had to put sudo at the beginning to get it to work.

Great news! Glad the issue is now resolved.

Many Thanks.