WebStorm 2016.3 error: Experimental support for decorators is a feature that is subject to change in a future release

Question

您好，已更新到最新的 WebStorm，我现在收到此错误：

Error:(52, 14) TS1219:Experimental support for decorators 
is a feature that is subject to change in a future release. 
Set the 'experimentalDecorators' option to remove this warning.

但是在我的tsConfig中experimentalDecorators都设置为true:

{
  "version": "1.5.0",
  "compilerOptions": {
    //...,
    "experimentalDecorators": true,   // <======== HERE
    //...,
  },
  "files": [
    //...
  ],
  "exclude": [ "node_modules" ]
}

Answer 1

WS2016.3 仅当文件包含在 'files' 或 'include' tsconfig.json 部分时才将配置设置应用于文件。 [More info about tsconfig.json]

因此配置必须包含所有项目文件（或者如果您有应用程序的多个部分，则可以有多个 tsconfig.json 文件）。否则打字稿服务使用文件的默认打字稿选项。

首选方案

你的tsconfig.json应该是：

{
  "version": "1.5.0",
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "noImplicitAny": false,
    "removeComments": true,
    "noLib": false,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true, 
    "sourceMap": true,
    "listFiles": true,
    "isolatedModules": false,
    "moduleResolution": "node",
    "suppressImplicitAnyIndexErrors": true
  },
  "include": [
    "typings/thera/thera.d.ts",
    "typings/browser.d.ts",
    "typings/main.d.ts",
    "typings/meteor.d.ts",
    "typings/meteor_server.d.ts",
    "your_app_directory/**/*" 
  ],
  "exclude": [ "node_modules" ],
  "compileOnSave":false //not required but is suggested for meteor projects
}

另一种解决方案

您可以在 TypeScript 设置中指定默认选项（如果您不想自动编译，则应取消选中 track changes 选项）：

注意： 如果您不喜欢新行为，您可以在 "File | Settings | Languages & Frameworks | TypeScript" -> "Use TypeScript service".[=14 中禁用打字稿服务集成=]

Answer 2

也适用于 WebStorm 2020.1.2。谢谢

Answer 3

打开文件 -> 设置 -> 语言和框架 -> Typescript
在选项输入中添加--experimentalDecorators --moduleResolution mode

点击右下角的应用按钮

WebStorm 2016.3 error: Experimental support for decorators is a feature that is subject to change in a future release

WebStorm 2016.3 error: Experimental support for decorators is a feature that is subject to change in a future release

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