Npm 为什么我的Ngx-qrcode2没有在Angular中生成QR码？

这个问题我已经解决了将近三天了。所以我现在要做的是，在一个页面上显示一个二维码，把你带到一个URL。为此，我使用了

ngx-qrcode2

到目前为止，我已经尝试运行了一个

npm安装ngx-qrcode2--save

。然后，我遵循了这个教程：，甚至生成了另一个angular应用程序，并且完全遵循了他所做的。它仍然不起作用。运行后，我的控制台显示以下错误：

Uncaught Error: Template parse errors:
Can't bind to 'qrc-value' since it isn't a known property of 'ngx-qr-code'.

另外，在我自己的应用程序上，我一直在努力生成二维码，它不显示二维码，但不同的是，它也不显示任何控制台错误。这与我尝试生成的二维码应用程序是分开的

以下是我在二维码生成应用程序中的一些代码：

app.component.ts

app.component.html

我的另一个应用程序也有完全相同的东西

另外，如果有帮助，这里是我的

package.json

文件

{
  "name": "qrcode",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~7.2.0",
    "@angular/common": "~7.2.0",
    "@angular/compiler": "~7.2.0",
    "@angular/core": "~7.2.0",
    "@angular/forms": "~7.2.0",
    "@angular/platform-browser": "~7.2.0",
    "@angular/platform-browser-dynamic": "~7.2.0",
    "@angular/router": "~7.2.0",
    "core-js": "^2.5.4",
    "ngx-qrcode2": "0.0.9",
    "rxjs": "~6.3.3",
    "tslib": "^1.9.0",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.13.0",
    "@angular/cli": "~7.3.8",
    "@angular/compiler-cli": "~7.2.0",
    "@angular/language-service": "~7.2.0",
    "@types/node": "~8.9.4",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.2.2"
  }
}

---

在这一点上，我不知道还能做什么。提前感谢。

npm包ngx-qrcode2已被弃用。改用@techiediaries/ngx qrcode

尝试安装

npm install @techiediaries/ngx-qrcode --save

---

这里是更新包的链接

我也遇到了同样的错误

因为，它已被弃用。因此，请使用[value]而不是[qrc value]：

<ngx-qrcode [value]="createdCode"></ngx-qrcode>

我认为您使用的标签不正确。我也有同样的问题，你解决了吗？

{
  "name": "qrcode",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "~7.2.0",
    "@angular/common": "~7.2.0",
    "@angular/compiler": "~7.2.0",
    "@angular/core": "~7.2.0",
    "@angular/forms": "~7.2.0",
    "@angular/platform-browser": "~7.2.0",
    "@angular/platform-browser-dynamic": "~7.2.0",
    "@angular/router": "~7.2.0",
    "core-js": "^2.5.4",
    "ngx-qrcode2": "0.0.9",
    "rxjs": "~6.3.3",
    "tslib": "^1.9.0",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.13.0",
    "@angular/cli": "~7.3.8",
    "@angular/compiler-cli": "~7.2.0",
    "@angular/language-service": "~7.2.0",
    "@types/node": "~8.9.4",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.2.2"
  }
}

npm install @techiediaries/ngx-qrcode --save

<ngx-qrcode [value]="createdCode"></ngx-qrcode>