I am working in a project called Street Addressing and House Numbering for a municipal office. I was adding images to the attributes of building polygons. I was working in a personal geodatabase but now I want to copy this building feature class to another file geodatabase. The copy was denied as it said some problem with the spatial reference. Later I also realized that the coordinate system tab was also disabled and I couldnot change the coordinate system. When I tried to use the "Project" tool, an error occured displaying incorrect geographic coordinate system. Could you help me find what the problem is and correct it so that I can copy the feature class and also be able to change the coordinate system.