误差InjectionToken AngularFire

Question

你好，我在运行服务时收到了这个错误。我遵循angularFire文档。

https://github.com/angular/angularfire2/blob/master/docs/1-install-and-setup.md

​

WARNING in ./~/angularfire2/angularfire2.js
3:26-40 "export 'InjectionToken' was not found in '@angular/core'

WARNING in ./~/angularfire2/app/firebase.app.module.js
3:40-54 "export 'InjectionToken' was not found in '@angular/core'

ERROR in /Users/sebastianalcoser/Documents/web/node_modules/angularfire2/app/firebase.app.module.d.ts (1,10): Module '"/Users/sebastianalcoser/Documents/web/node_modules/@angular/core/index"' has no exported member 'InjectionToken'.

ERROR in /Users/sebastianalcoser/Documents/web/node_modules/angularfire2/angularfire2.d.ts (3,10): Module '"/Users/sebastianalcoser/Documents/web/node_modules/@angular/core/index"' has no exported member 'InjectionToken'.

ERROR in Error encountered resolving symbol values statically. Reference to a local (non-exported) symbol 'firebaseConfig'. Consider exporting the symbol (position 14:5 in the original .ts file), resolving symbol AppModule in /Users/sebastianalcoser/Documents/web/src/app/app.module.ts

ERROR in multi webpack-dev-server/client?http://localhost:4200 ./src/main.ts
Module not found: Error: Can't resolve 'webpack-dev-server/client?http://localhost:4200' in '/Users/sebastianalcoser/Documents/web'
 @ multi webpack-dev-server/client?http://localhost:4200 ./src/main.ts

ERROR in multi ./src/styles.css
Module not found: Error: Can't resolve 'css-loader' in '/Users/sebastianalcoser/Documents/web'
 @ multi ./src/styles.css

ERROR in ./src/app/app.component.ts
Module not found: Error: Can't resolve 'css-loader' in '/Users/sebastianalcoser/Documents/web'
 @ ./src/app/app.component.ts 21:21-51
 @ ./src/app/app.module.ts
 @ ./src/main.ts
 @ multi webpack-dev-server/client?http://localhost:4200 ./src/main.ts

​

Answer 1

您需要安装最新版本的angular：

在Linux/Mac上: npm install @ar角/{公用，编译器-cli，核心，窗体，http，platform-browser，platform-browser-dynamic，platform-server，路由器，动画}@最新类型记录@最新版本--保存在Windows上: npm安装@ar角/通用最新的角/编译器@最新的“角/编译器”-cli@最新的“角/核心”最新的@角/窗体@最新的@角/窗体-浏览器@最新的@角/平台-浏览器-动态@最新的@角/平台-服务器@最新的角/路由器@最新的角/动画@最新的类型抄本@最新-保存

而且您可能需要更新polyfill: npm安装承诺

Answer 2

要解决此问题，请尝试将节点升级到最新版本8.4，并将upgrade /cli升级到最新版本，如下所示：

确保安装了最新版本的角-cli。要验证，请运行ng -v命令，并确保您看到了角-cli: 1.x.x-beta.xx。兼容最低的版本是1.x.x-beta.14。 您可能有错误的cli版本。

npm uninstall -g angular-cli
npm uninstall -g @angular/cli
npm cache clean

重新安装清洁版

npm install -g @angular/cli@latest

您需要有角度的CLI、类型和TypeScript。

npm install -g @angular/cli@latest

或在本地安装

npm install @angular/cli --save-dev

确保您安装了键入

npm install -g typings
npm install -g typescript

我从这些本教程上复制了这个