I have an ArcGIS Online map that we used last summer to collect points of data with the Collector app. Point locations were collected using Collector, and an image was attached to them. This summer, we tried to download the map to a new device (iPad) to continue with data collection and I received the following error:
InvalidJSON.pictureMaker contentType unknown
When I download the map to Collector on my Android device, the map will download, but the point layer does not show up on the map at all. I need the map to download with this layer because we want to continue our data collection from last year. Any help would be greatly appreciated!
Here's a possible fix for you.
Hope this helps.
Hey Kristen,
The issue you and the other posters have encountered here has been identified as the following bug:
BUG-000086128: The 'contentType' parameter becomes empty when using the 'updateDefinition' operation for a hosted feature service in ArcGIS Online.
This issue is directly related to changing the symbology, domain ordering, etc. for a hosted feature service. The updateDefinition operation wipes out the contentType, which causes Collector to not be able to interpret the drawingInfo for your feature layers.
The bug above is currently being addressed by the ArcGIS Online team to be included in the next release of Online in July. Please feel free to direct message me or reply on this thread if you have any additional questions.
-Scott