构建 Rocket handlebars 示例时未解决的导入模板

Question

我无法获得火箭 handlebars example 上班。这些是我的 Cargo.toml 依赖项：

[dependencies]
rocket = "*"
rocket_codegen = "*"
rocket_contrib = "*"
serde = "*"
serde_json = "*"
serde_derive = "*"

错误：

error[E0432]: unresolved import `rocket_contrib::Template`
  --> src\main.rs:29:5
   |
29 | use rocket_contrib::Template;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^ no `Template` in the root

error[E0599]: no method named `attach` found for type `rocket::Rocket` in the current scope
  --> src\main.rs:62:10
   |
62 |         .attach(Template::fairing())
   |          ^^^^^^

第一个错误找Template，找不到。在示例的 git repo 中，它不存在。这个例子怎么可能起作用？我确定我的 main.rs 中的 Rust 代码没问题，它与示例中的相同。我认为这只是一个依赖性问题。

我将 Cargo.toml 更改为：

[dependencies]
rocket = "*"
rocket_codegen = "*"
serde = "*"
serde_json = "*"
serde_derive = "*"

[dependencies.rocket_contrib]
version = "*"
features = ["handlebars_templates"]

现在我得到这些错误：

error[E0599]: no method named `attach` found for type `rocket::Rocket` in the current scope
  --> src\main.rs:62:10
   |
62 |         .attach(Template::fairing())
   |          ^^^^^^

error[E0599]: no associated item named `fairing` found for type `rocket_contrib::Template` in the current scope
  --> src\main.rs:62:17
   |
62 |         .attach(Template::fairing())
   |                 ^^^^^^^^^^^^^^^^^

Answer 1

您缺少 handlebars_templates 功能。你可以 see this in the example's Cargo.toml:

[dependencies.rocket_contrib]
version = "*" # Not a good idea to use * as version
features = ["handlebars_templates"]

构建 Rocket handlebars 示例时未解决的导入模板

Unresolved import Template when building Rocket handlebars example

rust

rust-rocket