stan <stanb@xxxxxxxxx> writes: > I have 3 machines that _should_ be nearly idnetical. On 2 of them, i have > no issues installing an extension I copiled. On one I get the followign > error message: > icadb=# CREATE EXTENSION IF NOT EXISTS pg_libphonenumber; > ERROR: could not load library > "/usr/lib/postgresql/11/lib/pg_libphonenumber.so": libphonenumber.so.7: > cannot open shared object file: No such file or directory > icadb=# ls -l /usr/lib/postgresql/11/lib/pg_libphonenumber.so This seems to be complaining about another library "libphonenumber.so.7" that pg_libphonenumber.so depends on. I think you forgot to install that one on this machine. regards, tom lane