Issue With Deploy Services Under Custom API Domain

Hello all:

I was following the Serverless blog post: https://serverless.com/blog/api-gateway-multiple-services using it as a guide in my attempt to deploy services under a custom domain. However, I am receiving the following error:

An error occurred: pathmapping - Only one base path mapping is allowed if the base path is empty.

The relevant entry in the serverless.yml is:

custom:
stage: ${opt:stage, self:provider.stage}
domains:
prod: prod-api.admin.acme.org_
qa: qa-api.admin.acme.org_
dev: api-dev.admin.acme.org

customDomain:
basePath: “people”
domainName: {self:custom.domains.{self:custom.stage}}
stage: “${self:custom.stage}”
createRoute53Record: true

provider:
name: aws
runtime: nodejs8.10
stage: dev
region: us-east-2
profile: acme-api
environment: {file(env.yml):{self:provider.stage}}

functions:
listUsers:
handler: list_items.list
events:
- http:
path: users
method: get
cors: true

Anything sticks out that I screw up on?

Thanks for looking …

BTW, I apologize for the lack of spacing in the post