Londiste3 - Ubuntu 16.04 - Postgresql 9.3

Hi again, I'm trying to create the root node using londiste3 from Ubuntu
16.04 connected to a PostgreSql 9.3 db, but I get this:

londiste3 /home/leonardo/replication/pacsio_master.ini create-root
master_node "dbname=test host=127.0.0.1"

2016-06-03 16:03:39,257 27600 INFO plpgsql is installed
2016-06-03 16:03:39,257 27600 INFO Installing pgq
2016-06-03 16:03:39,258 27600 INFO Reading from
/usr/local/share/skytools3/pgq.sql
2016-06-03 16:03:40,013 27600 ERROR Job job_repli_test_master got error
on connection 'db': could not access file "$libdir/pgq_lowlevel": No
existe el archivo o el directorio. Query: CREATE OR REPLACE FUNCTION
pgq.insert_event_raw(
queue_n ...
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/skytools/scripting.py",
line 579, in run_func_safely
r = func()
File
"/usr/local/lib/python2.7/dist-packages/skytools/adminscript.py", line
62, in work
fn(*cmdargs)
File "/usr/local/lib/python2.7/dist-packages/pgq/cascade/admin.py",
line 147, in cmd_create_root
return self.create_node('root', args)
File "/usr/local/lib/python2.7/dist-packages/pgq/cascade/admin.py",
line 198, in create_node
self.install_code(db)
File "/usr/local/lib/python2.7/dist-packages/londiste/setup.py", line
29, in install_code
CascadeAdmin.install_code(self, db)
File "/usr/local/lib/python2.7/dist-packages/pgq/cascade/admin.py",
line 425, in install_code
skytools.db_install(db.cursor(), objs, self.log)
File "/usr/local/lib/python2.7/dist-packages/skytools/sqltools.py",
line 531, in db_install
obj.create(curs, log)
File "/usr/local/lib/python2.7/dist-packages/skytools/sqltools.py",
line 490, in create
curs.execute(stmt)
File "/usr/local/lib/python2.7/dist-packages/psycopg2/extras.py",
line 120, in execute
return super(DictCursor, self).execute(query, vars)
OperationalError: could not access file "$libdir/pgq_lowlevel": No
existe el archivo o el directorio

P.S.: Here there's a suggestion of installing postgresql-9.4-pgq3, but
as I have 9.3 I cannot install the recommended package (it will install
9.4 and start a new cluster).

Regards,
--
Leonardo M. Ramé
Medical IT - Griensu S.A.
Av. Colón 636 - Piso 8 Of. A
X5000EPT -- Córdoba
Tel.: +54(351)4246924 +54(351)4247788 +54(351)4247979 int. 19
Cel.: +54 9 (011) 40871877