Running within portainer community edition 2.19.5 on a Raspberry Pi 2 Model B.
Docker version 26.1.4, build 5650f9b.

Trying to get below docker compose stack for Duplicati to deploy:

---
version: '2.1'

platform: linux/armv7

services:
  duplicati:
    image: lscr.io/linuxserver/duplicati:latest
    container_name: duplicati
    environment:
      - PUID=0
      - PGID=0
      - TZ=Europe/London
    volumes:
      - /portainer/Configs/Duplicati:/config
      - /mnt/Backups-Duplicati:/backups
      - /portainer/Configs:/source
    ports:
      - 8200:8200
    restart: unless-stopped

The error message recieved:

failed to deploy a stack: validating /data/compose/43/docker-compose.yml: (root) Additional property platform is not allowed

I have tried using multiple different versions such as 3, 3.8, 2.4 and also without the version statement at all.

I initially didn’t have the platform statement which results in the below error.

failed to deploy a stack: duplicati Pulling no matching manifest for linux/arm/v7 in the manifest list entries