无法找到名称“屏幕导向”。离子屏定向插件中的误差

Question

我正在创建一个应用程序使用离子版本4使用角形6！我需要获得定位设备，所以我使用了屏幕定位插件从Ionic 4文档：[https://beta.ionicframework.com/docs/native/screen-orientation]

但是，当我安装插件时，我收到了如下警告：

.8.0-rc.1 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic/ng-toolkit@1.0.8 requires a peer of @angular-devkit/build-angular@~0.8.0-rc.1 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic/ng-toolkit@1.0.8 requires a peer of @angular-devkit/core@~0.8.0-rc.1 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic/ng-toolkit@1.0.8 requires a peer of @angular-devkit/schematics@~0.8.0-rc.1 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic/schematics-angular@1.0.6 requires a peer of @angular-devkit/core@~0.8.0-rc.1 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic/schematics-angular@1.0.6 requires a peer of @angular-devkit/schematics@~0.8.0-rc.1 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic-native/screen-orientation@4.12.2 requires a peer of @ionic-native/core@^4.11.0 but none is installed. You must install peer dependencies yourself.
npm WARN @ionic-native/screen-orientation@4.12.2 requires a peer of rxjs@^5.5.11 but none is installed. You must install peer dependencies yourself.

+ @ionic-native/screen-orientation@4.12.2
added 1 package in 8.608s

现在，当我试图导入这样一个页面时：

编译失败。 未找到./node_modules/@ionic-native/screen-orientation/index.js模块:错误:无法解析'/Users/karthikcp/Documents/IONIC/testbake/node_modules/@ionic-native/screen-orientation‘中的“rxjs/可观”

我怎么能解决这个问题？

信息：

离子：

离子(离子CLI)：4.1.2 (/usr/local/lib/node_node/ ionic )

离子框架：@离子型/角形4.0.0-beta.7

@角-devkit/核心: 0.7.5

@angular/示意图: 0.7.5

@角/cli: 6.1.5

@离子型/ng-工具包: 1.0.8

@离子/原理图-角度: 1.0.6

科多瓦：

cordova (Cordova CLI)：7.1.0

科多瓦平台:无

科多瓦插件:没有白色插件(2个插件总数)

系统：

监督办-部署: 1.9.2

(/Users/karthikcp/.nvm/versions/node/v8.11.3/bin/node)：v8.11.3 NodeJS

国家预防机制: 5.6.0

OS : macOS高塞拉

Xcode : Xcode 9.4.1构建9F2000版本

## Update

I reinstalled the plugin as :  `npm install --save @ionic-native/screen-orientation@5.0.0-beta.15`

Now I am getting this error  :

>  ERROR in src/app/pages/test/test.page.ts(14,42): error TS2304: Cannot find name 'ScreenOrientation'.
>  

Dependencies:

```javascript

“依赖关系”：{

"@angular/common": "~6.1.1",

"@angular/core": "~6.1.1",

"@angular/forms": "~6.1.1",

"@angular/http": "~6.1.1",

"@angular/platform-browser": "~6.1.1",

"@angular/platform-browser-dynamic": "~6.1.1",

"@angular/router": "~6.1.1",

"@ionic-native/core": "5.0.0-beta.15",

"@ionic-native/screen-orientation": "^5.0.0-beta.15",

"@ionic-native/splash-screen": "5.0.0-beta.15",

"@ionic-native/status-bar": "5.0.0-beta.15",

"@ionic/angular": "4.0.0-beta.7",

"cordova-plugin-screen-orientation": "^3.0.1",

"core-js": "^2.5.3",

"rxjs": "6.2.2",

"zone.js": "^0.8.26"

},

Answer 1

我只会得到这个错误，如果我像这样导入：

import { ScreenOrientation } from '@ionic-native/screen-orientation';

但是，如果我将/ngx添加到@ionic-native/screen-orientation中，它将不会显示无法找到名称错误。但在我看来

NullInjectorError: No Provider for ScreenOrientation!

如果您添加了/ngx，也许这份工作是想要的。

Answer 2

这对我有用。在page.module中，导入依赖项：

import { ScreenOrientation } from '@ionic-native/screen-orientation/ngx';

并向该模块提供：

providers: [
    ScreenOrientation, 
    ...]

小心，如果没有从外派进口中删除“ScreenOrientation”，它将需要一个类型记录界面。那是我的错。