DuplicateStageName
目录
输出
Duplicate stage name 'foo-base', stage names should be unique描述
定义多个同名阶段会导致错误，因为构建器无法唯一解析阶段名称引用。
示例
❌ 错误示例：builder 被声明为阶段名称两次。
FROM debian:latest AS builder
RUN apt-get update; apt-get install -y curl
FROM golang:latest AS builder✅ 正确示例：阶段名称唯一。
FROM debian:latest AS deb-builder
RUN apt-get update; apt-get install -y curl
FROM golang:latest AS go-builder