找不到模块“ngx-bootstrap”

Question

我在使用 ngx-bootstrap 的应用程序中遇到问题，除非您指定路径，否则它现在无法检测到模块

例如：

import { BsModalService, BsModalRef } from 'ngx-bootstrap';

产生“找不到模块‘ngx-bootstrap’ ”。

删除参考并检查快速修复只是将参考替换为：

import { BsModalService, BsModalRef} from 'ngx-bootstrap/modal/public_api';

显然这并不理想，因为它们应该可以在不指定文件夹的情况下通过 ngx-bootstrap 获得，而且我将不得不通过几十个组件并更改这些不必要的引用。以前有人遇到过这个问题吗？

我已经试过了：

• npm install
• npm update 如果最近提交有更新
• 删除 node_modules 文件夹并npm install再次执行
• 自行重新安装 ngx-bootstrap - npm install ngx-bootstrap --save
• npm cache clean
• 我什至重新开始并将我的应用程序克隆到另一个位置，运行npm install，并且发生了同样的事情

昨天这工作正常。我不确定我错过了什么。

更多信息：

Angular CLI: 9.0.2
Node: 12.16.1
OS: win32 x64
Angular: 9.0.1

包.json：

    "private": true,
  "dependencies": {
    "@agm/core": "^1.1.0",
    "@angular-devkit/build-angular": "^0.900.7",
    "@angular/animations": "9.0.1",
    "@angular/cdk": "^9.2.0",
    "@angular/common": "9.0.1",
    "@angular/compiler": "9.0.1",
    "@angular/core": "9.0.1",
    "@angular/forms": "9.0.1",
    "@angular/platform-browser": "9.0.1",
    "@angular/platform-browser-dynamic": "9.0.1",
    "@angular/router": "9.0.1",
    "@auth0/angular-jwt": "^4.0.0",
    "@microsoft/signalr": "^3.1.3",
    "@ng-select/ng-select": "^3.7.3",
    "@ngx-progressbar/core": "^5.3.2",
    "@ngx-pwa/local-storage": "^9.0.3",
    "@types/date-fns": "^2.6.0",
    "angular-9-datatable": "^0.1.1",
    "angular-calendar": "^0.28.2",
    "angular-gauge": "^3.1.2",
    "angular-gridster2": "^9.0.1",
    "angular-resize-event": "^1.2.1",
    "bootstrap": "^4.4.1",
    "chartjs-plugin-annotation": "^0.5.7",
    "ckeditor4-angular": "^1.1.0",
    "core-js": "^3.6.4",
    "crypto-js": "^4.0.0",
    "echarts": "^4.7.0",
    "file-saver": "^2.0.2",
    "html2canvas": "^1.0.0-rc.5",
    "jspdf": "^1.5.3",
    "moment": "^2.24.0",
    "moment-timezone": "^0.5.27",
    "ng-dynamic-component": "^6.1.0",
    "ng2-dragula": "^2.1.1",
    "ng4-charts": "^1.0.2",
    "ngx-bootstrap": "^5.3.2",
    "ngx-color": "^4.1.1",
    "ngx-echarts": "^4.2.2",
    "ngx-image-compress": "^8.0.4",
    "ngx-image-cropper": "^3.1.5",
    "ngx-infinite-scroll": "^8.0.1",
    "ngx-material-timepicker": "^5.5.1",
    "ngx-pagination": "^5.0.0",
    "ngx-swiper-wrapper": "^9.0.1",
    "ngx-toastr": "^12.0.1",
    "pluralize": "^8.0.0",
    "rxjs": "6.5.4",
    "rxjs-compat": "6.5.4",
    "time-ago-pipe": "^1.3.2",
    "tslib": "^1.10.0",
    "valid-url": "^1.0.9",
    "zone.js": "^0.10.3"
  },
  "devDependencies": {
    "@angular/cli": "9.0.2",
    "@angular/compiler-cli": "9.0.1",
    "@angular/language-service": "9.0.1",
    "@types/echarts": "^4.4.4",
    "@types/file-saver": "^2.0.1",
    "@types/googlemaps": "^3.39.2",
    "@types/jasmine": "3.5.3",
    "@types/jasminewd2": "2.0.8",
    "@types/jspdf": "^1.3.3",
    "@types/node": "^13.9.8",
    "@types/pluralize": "0.0.29",
    "@types/valid-url": "^1.0.3",
    "codelyzer": "^5.2.2",
    "ie-shim": "^0.1.0",
    "jasmine-core": "~3.5.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "^4.4.1",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage-istanbul-reporter": "~2.1.1",
    "karma-jasmine": "~3.1.1",
    "karma-jasmine-html-reporter": "^1.5.3",
    "node-sass": "^4.13.1",
    "protractor": "~5.4.3",
    "ts-node": "~8.6.2",
    "tslint": "~6.0.0",
    "typescript": "3.7.5",
    "webpack-bundle-analyzer": "^3.6.1"
  },

如果有人有任何想法，请告诉我

谢谢！

Answer 1

根据ngx-bootstrap 文档，angular9 不支持这种导入。如果您想使用BsModalService,ButtonsModule等等，您必须按如下方式导入它们：

// RECOMMENDED
import { BsModalService, BsModalRef } from 'ngx-bootstrap/modal';
import { ButtonsModule } from 'ngx-bootstrap/buttons';

代替 ：

// NOT RECOMMENDED
import { BsModalService, BsModalRef , ButtonsModule } from 'ngx-bootstrap';

Answer 2

根据https://github.com/valor-software/ngx-bootstrap/issues/5753

更新文档：https : //valor-software.com/ngx-bootstrap/#/modals

 // RECOMMENDED
import { ModalModule } from 'ngx-bootstrap/modal';
// NOT RECOMMENDED (Angular 9 doesn't support this kind of import)
import { ModalModule } from 'ngx-bootstrap';

@NgModule({
  imports: [ModalModule.forRoot(),...]
})
export class AppModule(){}

这是理想的解决方案，因为它是由 repo 维护者记录的解决方案。

Answer 3

我今天遇到了同样的问题，试图从 Angular 9.0.2更新到 Angular 9.1.0。

我想这是因为你的package.json 中有："ngx-bootstrap": "^5.3.2"，所以 npm 正在使用 ngx-bootrap 标签上可用的最新版本：5.6.0。（至少这是我今天的版本）

我已经解决了替换我的代码中的导入，从'ngx-bootstrap'到'ngx-bootstrap/someBootstrapComponent' 的问题。

例如，我之前的导入是：

import { BsModalRef, BsModalService } from 'ngx-bootstrap';

我的新导入看起来像：

import { BsModalRef, BsModalService } from 'ngx-bootstrap/modal';

我知道这不是一个理想的解决方案，但同时至少您可以正确编译您的应用程序。

我希望它有帮助。

最好的问候，耶稣。

Answer 4

从 'ngx-bootstrap/modal' 导入 { ModalModule }；

这必须有效..简单的解决方案

Answer 5

所以看起来它可能是 ngx-bootstrap 更高版本的问题。在我的 package.json 中，我替换"ngx-bootstrap": "^5.3.2"为"ngx-bootstrap": "5.3.2",runnpm install并且它的构建没有任何问题。