Error when trying to run now-compose on existing docker-compose.yml about now-compose HOT 4 CLOSED

version: "3"
networks:
  app-tier:
    driver: bridge
services:
  app:
    build: ./.docker/php/Dockerfile
    networks:
      - app-tier
    ports:
      - 9002:9000
    volumes:
      - .:/srv/app
  nginx:
    build: ./.docker/nginx/Dockerfile
    networks:
      - app-tier
    ports:
      - 8080:80
    volumes:
      - ./public:/srv/app/public

Creating network "now_app-tier" with driver "bridge"
Building app
Traceback (most recent call last):
  File "docker-compose", line 6, in <module>
  File "compose/cli/main.py", line 71, in main
  File "compose/cli/main.py", line 127, in perform_command
  File "compose/cli/main.py", line 1052, in up
  File "compose/cli/main.py", line 1048, in up
  File "compose/project.py", line 471, in up
  File "compose/service.py", line 352, in ensure_image_exists
  File "compose/service.py", line 1067, in build
  File "site-packages/docker/api/build.py", line 142, in build
TypeError: You must specify a directory to build in path
[30179] Failed to execute script docker-compose
ERROR: 255