My development environment is
Today I experienced following error
could not access file "$libdir/postgis-2.1": No such file or directory
There are few solutions.
Solution 1: update DB
psql -U postgres dbname dbname=#\dx
You can see
postgis 2.1.5 but it should be
postgis 2.2.0. Let's update.
dbname=#ALTER EXTENSION postgis UPDATE TO '2.2.0'; dbname=#\dx
Solution 2: downgrade postgis to 2.1 under Arch Linux
There is amazing Arch Linux Archive. We can find previous version of different packages there.
Old versions of
postgis you can see here.
# remove old package yaourt -Rs postgis # download new package wget http://ala.seblu.net/packages/p/postgis/postgis-2.1.8-1-x86_64.pkg.tar.xz # install pacman -U postgis-2.1.8-1-x86_64.pkg.tar.xz # forbid update sudo vim /etc/pacman.conf IgnorePkg = postgis