How to get Facebook to recognize your Flickr username.

I was trying to integrate my flickr profile into my facebook feed, but I kept getting this message: "The email or user name you entered is not valid. Please verify and try again."

Here's what I did. I went to my flickr profile. I right-clicked on the main photostream page and hit "View Source." In the HTML source I found my flickr ID. This was in a line formatted as follows:

global_nsid = '12176869@N00',

This means that my flickr ID was "12176869@N00" (minus the quotes). Went back into Facebook. Went to my profile. Hit the options button on the top right hand side of my Wall. Hit the Settings button. Next I re-added Flickr integration in the "Imported Stories" section, but instead of using my username I used my flickr ID. That was it.

-David