---
id: "mnsnq17s-nabrn9"
name: "【避免指南】避免在未创建画布时调用get_poster_canvas_info"
type: "feedback"
project: "null"
tags: [error, avoid, poster:get_poster_canvas_info]
created: "2026-04-10"
---
【下次这样做】使用poster插件时，在调用get_poster_canvas_info之前，必须先调用create_poster_canvas创建画布。例如：ext_call({plugin: 'poster', tool: 'create_poster_canvas', args: {preset: 'social'}})。错误原因：No canvas created表示画布不存在，无法获取信息。