GIS: PROJ4 Library error in combination with MapServer 6 and CentOS 6 (2 Solutions!!) danroo GIS: PROJ4 Library error in combination with MapServer 6 and CentOS 6 Helpful? Please support me on Patreon: With … Concluzion: GIS: PROJ4 Library error in combination with MapServer 6 and CentOS 6 (2 Solutions!!) – [vid_tags] source