NG-引导预输入类型错误：对象（...）不是一个函数

Question

我想用角引导预输入linkToTypeahead在angular5应用。不过，我不断收到以下错误（S）：

ERROR TypeError: Object(...) is not a function
at new NgbTypeahead (typeahead.js:52)
at createClass (core.js:12449)
at createDirectiveInstance (core.js:12284)
at createViewNodes (core.js:13742)
at callViewAction (core.js:14176)
at execComponentViewsAction (core.js:14085)
at createViewNodes (core.js:13770)
at callViewAction (core.js:14176)
at execComponentViewsAction (core.js:14085)
at createViewNodes (core.js:13770)

并且：

ERROR TypeError: Cannot read property 'instance' of undefined
at nodeValue (core.js:11753)
at Object.eval [as handleEvent] (NgbdTypeaheadBasic.html:9)
at handleEvent (core.js:13547)
at callWithDebugContext (core.js:15056)
at Object.debugHandleEvent [as handleEvent] (core.js:14643)
at dispatchEvent (core.js:9962)
at eval (core.js:10587)
at HTMLDocument.eval (platform-browser.js:2628)
at ZoneDelegate.invokeTask (zone.js:421)
at Object.onInvokeTask (core.js:4740)

我复制从网站link简单代码事先键入的内容。

我的package.json文件：

{
  "name": "test-type-ahead",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.2.0",
    "@angular/common": "^5.2.0",
    "@angular/compiler": "^5.2.0",
    "@angular/core": "^5.2.0",
    "@angular/forms": "^5.2.0",
    "@angular/http": "^5.2.0",
    "@angular/platform-browser": "^5.2.0",
    "@angular/platform-browser-dynamic": "^5.2.0",
    "@angular/router": "^5.2.0",
    "@ng-bootstrap/ng-bootstrap": "^2.0.0-alpha.0",
    "bootstrap": "^4.1.0",
    "core-js": "^2.4.1",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "~1.7.3",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "~2.5.3"
  }
}

我迄今为止尝试：

1. 重新安装node_modules与NPM - 没有帮助
2. 入门角CLI一个全新的项目，并尝试了代码存在 - 没有帮助。

任何帮助是极大的赞赏！

Answer 1

所以，我的问题解决了通过安装NG-引导的稳定版本：

这样的package.json文件：

`dependencies
 ....
 "@ng-bootstrap/ng-bootstrap": "^1.1.1",
 ....
 dependencies`

感谢您的快速解答JB Nizet和Niladri

---

EDIT: Also, as @Niladri said in the comments, you need to use forRoot() for the modules you want to use. This is the official documentation of version 1.1 which is for Angular 5 and it is said here, but the new documentation for newer versions of angular doesn't say that, as it was changed. So keep that in mind!