Environment variables not working yml file

Serverless Framework
1

Hi,
I’m using serverless-dotenv-plugin to manage the environment variables globally in monorepo. It’s working good in lambdas, but when I want to refer environment in the serverless.yml it’s not working.

httpApi:
    id: ${API_GATEWAY_ID}

I also tried

httpApi:
    id: ${env:API_GATEWAY_ID}

both seems not working

API_GATEWAY_ID is defined in .env file

Another problem I wrote all the routes in the external file and included in in serverless.yml

functions:
   - ${file(./src/route.yml)}

and in the route.yml I’m trying to refer env variable, but thats also throwing error

  tenantUpdate:
    handler: src/handler.update
    events:
      - httpApi:
          path: /tenants/{id}
          method: patch
          authorizer:
            type: request
            id:
              Ref: ${TOKEN_AUTHORIZER_ID}

Getting error

The CloudFormation template is invalid: Template format error: Unresolved resource dependencies [${TOKEN_AUTHORIZER_ID}] in the Resources block of the template

Please advice me