Can't make decoderbufs with PostgreSQL 10.6 on CentOS 7

Installed https://github.com/eulerto/wal2json successfully.

Then tried to install postgres-decoderbufs:

• git clone https://github.com/debezium/postgres-decoderbufs.git
• cd postgres-decoderbufs
• sudo make && make install*

Ouput:
make: Nothing to be done for `all'.
/usr/bin/mkdir -p '/usr/pgsql-10/lib'
/usr/bin/mkdir -p '/usr/pgsql-10/share/extension'
/usr/bin/install -c -m 755 decoderbufs.so '/usr/pgsql-10/lib/decoderbufs.so'
/usr/bin/install -c -m 644 .//decoderbufs.control '/usr/pgsql-10/share/extension/'

PFB the replication related changes from pg_hba.conf:
local replication all peer
host replication all 172.18.0.0/16 md5
host replication all ::1/128 md5

PFB the changes from the postgresql.conf:
shared_preload_libraries = 'decoderbufs,wal2json'
wal_level = logical
max_wal_senders = 1
max_replication_slots = 1
wal_keep_segments = 0

Upon starting postgres server getting this LOG:

2019-01-07 09:39:56.040 UTC [8298] LOG: worker process: logical replication launcher (PID 8309) exited with exit code 1
2019-01-07 09:39:56.041 UTC [8304] LOG: shutting down
2019-01-07 09:39:56.054 UTC [8298] LOG: database system is shut down

When tried to run postgres by only enabling wal2json, it was up; however, as expected, postgres-connector wasn't able to communicate wth it.