I've come across an issue with Collector. I'm in the process of developing editable online maps for a Biologist to collect field data, but I cannot add any features other than point features in the field. Adding the polygon or line features in AGOL's map viewer works fine, but I am unable to do this in Collector. Whenever I attempt adding one of these features, I get the red colored errors “No valid Length” (for lines) or “No valid Area” (for polygons) below the symbol. See the photos below. An example of my web map is here: http://arcg.is/14yDm1
I’m using an iOS iphone 5s and its updated. I’ll try asking ESRI at the conference if all else fails.