Getting "Unknown output plugin 'sumologic" after installation

[contactvaibhavmishra]

I'm trying to redirect application logs to the summologic collector.

Installed plug-ing as mentioned in docs: gem install fluent-plugin-sumologic_output
and fluent-gem install fluent-plugin-sumologic_output

What happened:
Getting following message in log: 2019-05-02 15:48:38 -0700 [info]: parsing config file is succeeded path="/etc/td-agent/td-agent.conf"
2021-12-13 20:33:34 +0000 [error]: config error file="/fluentd/etc/fluent.conf" error_class=Fluent::ConfigError error="Unknown output plugin 'sumologic'. Run 'gem search -rd fluent-plugin' to find plugins"

Environment:

• Ruby version : ruby 3.0.1p64
• Distributor ID: Ubuntu
  Description: Ubuntu 18.04.6 LTS
  Release: 18.04
  Codename: bionic
• Fluentd plugin version : fluent-plugin-sumologic_output-1.7.3

Fluentd.conf
`
@type forward
port 24224
bind 0.0.0.0

<match .>
@type sumologic
endpoint https://collectors.us2.sumologic.com/receiver/v1/http/XXXX
log_format json
source_categoryAppLog
source_name FluentD
open_timeout 10

`