Getting Serverless plugin "serverless-domain-manager" not found

Serverless Framework
1

However, I also get
(dgl-env-nWAMFiVe) (xenial)les@localhost:~/dgl-home/dgl-env/python-projects/dgl-manage-campaigns-sls$ sls plugin list | grep serverless-domain-manager
serverless-domain-manager - Serverless plugin for managing custom domains with API Gateways.

serverless.yml:
service: manageCampaigns
plugins:

  • serverless-python-requirements
  • serverless-wsgi
  • serverless-domain-manager
    custom:
    wsgi:
    app: manageCampaigns.app
    packRequirements: false
    pythonRequirements:
    dockerizePip: false
    customDomain:
    domainName: campaigns.dunawaygroupllc.com
    basePath: ‘’
    stage: ${self:provider.stage}
    createRoute53Record: true
    package:
    exclude:
    • node_modules/**
    • venv/**
      provider:
      name: aws
      runtime: python3.6
      stage: dev
      region: us-east-1
      functions:
      app:
      handler: wsgi.handler
      events:
      • http: ANY /
      • http: ‘ANY {proxy+}’

Did I miss something?