问题

FROM node:18.16.0
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

我有这个Dockerfile，运行docker-compose up时出现错误：
Error: 无法找到模块'express'

我尝试更新了Dockerfile但没有成功

<details>
<summary>英文:</summary>
```docker
FROM node:18.16.0
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD [&quot;npm&quot;, &quot;start&quot;]

I have this Dockerfile, when I run docker-compose up I get this error :
Error: Cannot find module 'express'

I tried updating the docker file but it did not work

答案1

得分: -1

"dependencies": {
"dependency1": "^v-xxx",
"dependency2": "^v-xxx",
"express": "^4.17.1" （version-4.17 is just an example)
}

不建议的方式：（在 Dockerfile 中更改这些）

RUN npm install
RUN npm install express

话虽如此，您需要以一种方式更改您的 Dockerfile，以便在服务器启动后不会退出。希望这有所帮助。

"dependencies": {
    "dependency1": "^v-xxx",
    "dependency2": "^v-xxx",
    "express": "^4.17.1"  (version-4.17 is just an example)
  }

RUN npm install
RUN npm install express