Integrate Google analytics to snowplow

I am trying to integrate Google Analytics platform to my snowplow’s website.
Using the link given below:

I tried putting the link’s script to our main tag of the google tag manager but it showed error ; “V1 not found(404)”

I am using scala stream collector “snowplow-stream-collector-0.12.0.jar” and R&D suggests me scala collector doesn’t support GA, is that true?