Hi Tony, I'm working with Drone2Map (1.0.0.464) in the UK, and am also experiencing this issue, with the same error message: We have tried the suggestions above, but with no success. I have changed my computer's region to English (United States), and my project's P4D file doesn't appear to have an ORI tag. The GPS coordinates of my images are British National Grid (27700), as are the coordinates of my GCP's. Do you think this might be a coordinate system issue? We tried running the same project without defining the coordinate system first(defaulted to WGS84), and seemed to work fine. Could this be related to the version of the software that we are currently working with? Thanks, Claire
... View more