PostgreSQL error when trying to create an extension

Question

ERROR: could not open extension control file \"/usr/share/postgresql/9.1/extension/postgis.control\": No such file or directory

Is what I get when I tr

Answer 1

Just resolved it. You have to uninstall postgis-1.5. You installed it instaed of PostGIS 2.0. As soon as you will install postgis-2.0 you will see corrected libraries in extension directory. Before installing you should to add a correct repository (see http://docs.pgrouting.org/2.0/en/doc/src/installation/index.html#ubuntu-debian). Use ppa:ubuntugis/ubuntugis-unstable for PostGIS 2.0. Try one of

apt-get remove postgis
apt-get remove postgresql-9.1-postgis
apt-get install postgresql-9.1-postgis

I couldn't remove and install because of dependencies error. After a few attmpts, I just removed postgresql-9.1-postgis and apt-get offer me upgrade it to 2.0.