[postgis-users] Broken installs for PostGIS for Ubuntu 20.04LTS / Focal?

Marco Boeringa marco at boeringa.demon.nl
Wed May 13 02:06:28 PDT 2020

Hi all,

Is there someone who can confirm they have been able to install PostGIS 
3.0.1 via the official APT repository?:


After using the Synaptics Package Manager to install the three packages 
and subsequently trying to create the PostGIS extension in pgAdmin4, I 
get the following error:

ERROR: could not load library "/usr/lib/postgresql/12/lib/postgis-3.so": 
/usr/lib/postgresql/12/lib/postgis-3.so: undefined symbol: GEOSMakeValid

I have been trying different things to fix this for past two days 
including re-install, but to no avail. I have also attempted to include 
the UbuntuGIS repository as a potential alternative resource of PostGIS 
packages, but discovered the UbuntuGIS repository is lagging behind and 
doesn't yet have packages for 20.04LTS.


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