由于解析器默认，货物穿梭运行失败

Question

在我的项目目录中运行

cargo shuttle run

时， 我收到以下错误消息

warning: some crates are on edition 2021 which defaults to `resolver = "2"`, but virtual workspaces default to `resolver = "1"`
note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest

Answer 1

这是一个使用“货物工作区”功能的项目。解决方案是在根目录的 Cargo.toml. 中定义解析器

[workspaces]
resolver = "2"

对于 

Rust 2021 版

，首选方法是在 Cargo.toml 中声明版本。对于 Rust 2021，解析器默认为 2。 edition = "2021"