env is not internal or external

I found a parser on the Internet, I knocked it, moved to the repository.

Entered the scrapy crawl spiders command, the parser launched and issued an error Environment variable PARSA_TOKEN not set

Then he entered the command env PARSA_TOKEN=123 scrapy crawl spiders

And it gives env не является внутренней или внешней программой....

What to do? I worked in the Anaconda window