I created a geodatabase on ArcCatalog and uploaded it to ArcOnline. I created a map on ArcOnline and made it accessible and editable on ArcCollector. I can take data points on ArcCollector, but when I go to save an offline area I keep getting the same error code:
[4F1539D5-3F1A-4671-A2DE-3009315E41A0] - Error downloading map: Error Domain=com.esri.arcgis.runtime.error Code=2 "Invalid argument" UserInfo={NSLocalizedFailureReason=Feature table must have a spatial reference to store features with geometry., NSLocalizedDescription=Invalid argument, Additional Message=Feature table must have a spatial reference to store features with geometry.}
I have checked in ArcCatalog and all of the layers in the geodatabase have a spatial (X, Y) assigned to it. I am not sure how else to fix this. I am using the aerial satellite basemap provided on ArcOnline.
Having the same issue here