为什么 Angular 5 中的错误是:没有导出成员“OpaqueToken".? [英] Why error in Angular 5 as : has no exported member 'OpaqueToken'.?

问题描述

我有一个 Angular 4 应用程序，我要升级到 Angular 5.

I have an Angular 4 application, which I am upgrading to Angular 5.

我收到以下错误.

src/app/application/services/generated/variables.ts(1,10) 中的错误:错误 TS2305:模块'"..../node_modules/@angular/core/core"'没有导出成员OpaqueToken".

ERROR in src/app/application/services/generated/variables.ts(1,10): error TS2305: Module '"..../node_modules/@angular/core/core"' has no exported member 'OpaqueToken'.

代码片段是:

import { OpaqueToken } from '@angular/core';

export const BASE_PATH = new OpaqueToken('basePath');
export const COLLECTION_FORMATS = {
    'csv': ',',
    'tsv': '   ',
    'ssv': ' ',
    'pipes': '|'
}

此代码由 swagger 编辑器生成.

推荐答案

在 package.json 文件中包含 folling

includes folling in the package.json file

"@angular/flex-layout": "^2.0.0-beta.12"

尝试删除 node_modules 文件夹，删除 package.json 文件然后运行以下命令我希望这个问题得到解决

Try deleting the node_modules folder, delete the package.json file then running the following command i hope this problem was resolved

npm 安装

有关此问题，请参阅以下链接https://github.com/angular/flex-layout/issues/494#issuecomment-343355178

please refer following link for this issue https://github.com/angular/flex-layout/issues/494#issuecomment-343355178

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