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Perhaps it detected you didn't have yarn.

Correct, I don't have yarn installed.

I upvoted my original comment to move it up in the comment section so that others may see the corrections.

Thanks a lot for that. I tried editing my post but keep getting "An image did not save correctly" - I can't seem to fix the errors your pointed out. Hopefully people see your comment -- or can figure it out.

The error is minor and developers should be able to spot it easily.

I used to run into encoding-related update issues due to icon glyphs in my posts but I don't see anything in your post that might trigger that.