Can't find module in code node

Questions
1

Describe the problem/error/question

My code node use httpntlm for my login logic. And it works fine in few month.

But after recently I update my n8n version. It can’t work anymore.

I think there is something wrong with npm install.

What is the error message (if any)?

image
image650×222 26.8 KB

DockerFile

FROM n8nio/n8n

USER root

RUN apk add --no-cache curl

RUN npm install -g httpntlm

USER node

Docker-compose.yml

version: '3.8'

volumes:
  n8n_storage:

services:
  n8n:
    build: .
    restart: always
    ports:
      - "127.0.0.1:5678:5678"
    environment:
      - TZ=Asia/Taipei
      - NODE_FUNCTION_ALLOW_EXTERNAL=*
      - N8N_BROWSERLESS_URL=http://browserless:3000
    volumes:
      - n8n_storage:/home/node/.n8n
    depends_on:
      - browserless

  browserless:
    image: browserless/chrome:latest
    restart: always
    ports:
      - "3000:3000"
    environment:
      - MAX_CONCURRENT_SESSIONS=5
      - ENABLE_DEBUGGER=false

I have try few change but still not working

I fix dockerfile to below , but not work

FROM n8nio/n8n

USER root

# Reinstall apk-tools first
RUN wget -q https://dl-cdn.alpinelinux.org/alpine/v3.22/main/x86_64/apk-tools-2.14.9-r3.apk && \
    tar -xzf apk-tools-2.14.9-r3.apk -C / && \
    rm apk-tools-2.14.9-r3.apk
# 安裝 curl
RUN apk add --no-cache curl

RUN npm install -g /usr/local/lib/node_modules/n8n httpntlm

USER node

Information on your n8n setup

  • n8n version: 2.3.6
  • Database (default: SQLite): not use
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app): docker desktop
  • Operating system: Windows
2

Hi @Tim_Lee

After the update, n8n started running the Code node in an isolated task runner instead of the main Node.js process.
Because of that, modules installed globally with npm install -g are no longer visible to the Code node.

So httpntlm is installed in the container, but not inside the environment where the Code node actually runs, which is why you get “Cannot find module”.

The fix is to install the package locally in n8n’s own node_modules directory, not globally.

In your Dockerfile, replace the global install with:

FROM n8nio/n8n

USER root
WORKDIR /usr/local/lib/node_modules/n8n
RUN npm install httpntlm
USER node

Keep the environment variable NODE_FUNCTION_ALLOW_EXTERNAL=* in docker-compose.

Then rebuild the image and start fresh:

docker-compose build --no-cache
docker-compose up -d

This installs httpntlm where the Code node can actually load it, and the module will be found again.

3

@Tim_Lee After updating n8n, you need to install the external module httpntlm locally in the Code node; change your Dockerfile’s install line to RUN

npm install –prefix /usr/local/lib/node_modules/n8n httpntlm