I’m trying out Omeka (2.4.1), and trying out the Carta plugin (1.2.2) as part of that. I have basic Omeka functionality working, and a simple Carta map on an item as a test. But I’m now trying to upload an image overlay of a historic map to use. I’ve tried a variety of image files, both JPEG and PNG, but everything I’ve tried gives:
Sorry, your file was not uploaded
Is there a size limit? An image file format that works better than others?