version: '3.4'

services:
  sql.data:
    sql.data:
    image: microsoft/mssql-server-linux
    environment:
      - MSSQL_SA_PASSWORD=Pass@word
      - ACCEPT_EULA=Y
      - MSSQL_PID=Developer
    ports:
      - "5434:1433"
  webapplication2:
    image: ${DOCKER_REGISTRY}webapplication2
    build:
      context: .
      dockerfile: WebApplication2/Dockerfile

error : (Line: 7, Col: 7, Idx: 107) - (Line: 7, Col: 7, Idx: 107): Expected 'MappingStart', got 'SequenceStart' (at Line: 7, Col: 7, Idx: 107).
1>Done building project "docker-compose.dcproj" -- FAILED.