New pattern, already need help

Since I’ve just started a new pattern, I just may be popping in more than usual.
The pattern: http://undergroundcrafter.com/blog/2016/03/30/free-knitting-pattern-ladder-stitch-cowl/

After casting on, I see the attached line. Slip stitch knit to last stitch, purl one. But there are 2 1’s in there that I don’t understand. Can you explain?

Thanks
Pauline

It looks like a typo to me. I don’t see any purpose for it.

It looks like slip one (sl 1). See also the one at the end of the link, p1.

Agree. There’s just an extra character in there that’s confusing her I think. I could see no point to the circled one.

Thank you both for replying. I am going to continue and disregard that extra “1”.