Odoo issue creating new database:

Database creation error: new encoding (UTF8) is incompatible with the encoding of the template database (SQL_ASCII) HINT: Use the same encoding as in the template database, or use template0 as template.

Fix:
su – postgres
psql postgres

UPDATE pg_database SET datistemplate = FALSE WHERE datname = ‘template1’;
DROP DATABASE template1;
CREATE DATABASE template1 WITH TEMPLATE = template0 ENCODING = ‘UNICODE’;
UPDATE pg_database SET datistemplate = TRUE WHERE datname = ‘template1’;
\c template1
VACUUM FREEZE;