I am using ArcGIS 10.2.2. I added a layer to arc map and the layer loaded with the red exclamation mark next to it, indicating that it could not find the layer. I checked the data source and it was in a drive that the computer does not even have.
I have tried:
- Changing the data source from the properties and right click/data/repair data source
- removing the layer and re-adding it
- Re-downloading and reading the layer
The layer is the 2007 25m raster of the Center for Ecology and Hydrology Land Cover Map. The 1990 raster has the same problem. My download is missing the 2000 raster. The 1km raster works fine. I downloaded it from digimap, to which my university has a subscription.