docker-compose抱怨缺少']'

Question

我正在尝试使nodemon和docker-compose相互配合，但遇到一个问题：每次运行docker-compose up时，都会出现以下错误：sh: missing ]。以下是相关文件：

Dockerfile

FROM node:11.1.0-alpine

MAINTAINER TileHalo

WORKDIR /usr/src/app

RUN npm install -g nodemon

COPY package*.json ./
RUN npm install --save

COPY . .
EXPOSE 3000

CMD [ "nodemon", "./bin/www"]

和docker-compose.yml

version: "2"

services:
  web:
    build: .
    ports:
      - "3000:3000"
    depends_on:
      - postgres
    volumes:
      - .:/usr/src/app
  postgres:
    image: "postgres:alpine"
    environment:
      POSTGRES_PASSWORD: supersalainen
      POSTGRES_USER:  kipa

编辑：逗号修复后可在纯docker上运行，但不适用于docker-compose