PROSAGA码农传奇-EAAS/NFV-Ionic 4：NFC无法导入NFC和Ndef

使用Cordova插件在Ionic 4中启动项目。我正在尝试将NFC初始化到项目中。我只是遵循了Ionic文档，而Cordova-Plugin被添加到package.json中。现在，我试图添加一个NdefListener。因此，我可以读取，写入和清除NFC标签。我尝试使用@ ionic-native / nfc代替@ ionic-native / nfc / ngx，但是我的代码找不到@ ionic-native / nfc。我的离子CLI是5.2.8。这是在我的home.page.ts中。
<pre><code>import { NFC, Ndef } from "@ionic-native/nfc/ngx";

constructor(private nfc: NFC, private ndef: Ndef) {}
</code></pre>当仅在构造函数中使用ndef而不使用其他代码时，我会收到错误代码，当我将NFC放在首位时，只会将Ndef更改为NFC，也会发生同样的错误代码。
<pre><code>ERROR Error: Uncaught (in promise): NullInjectorError: StaticInjectorError(AppModule)[HomePage -> Ndef]: 
 StaticInjectorError(Platform: core)[HomePage -> Ndef]: 
 NullInjectorError: No provider for Ndef!
NullInjectorError: StaticInjectorError(AppModule)[HomePage -> Ndef]: 
 StaticInjectorError(Platform: core)[HomePage -> Ndef]: 
 NullInjectorError: No provider for Ndef!
 at NullInjector.get (/vendor-es2015.js:35988)
 at resolveToken (/vendor-es2015.js:37774)
 at tryResolveToken (/vendor-es2015.js:37700)
 at StaticInjector.get (/vendor-es2015.js:37563)
 at resolveToken (/vendor-es2015.js:37774)
 at tryResolveToken (/vendor-es2015.js:37700)
 at StaticInjector.get (/vendor-es2015.js:37563)
 at resolveNgModuleDep (/vendor-es2015.js:61613)
 at NgModuleRef_.get (/vendor-es2015.js:62701)
 at resolveNgModuleDep (/vendor-es2015.js:61613)
 at resolvePromise (/polyfills-es2015.js:3803)
 at resolvePromise (/polyfills-es2015.js:3760)
 at /polyfills-es2015.js:3864
 at ZoneDelegate.invokeTask (/polyfills-es2015.js:3397)
 at Object.onInvokeTask (/vendor-es2015.js:69392)
 at ZoneDelegate.invokeTask (/polyfills-es2015.js:3396)
 at Zone.runTask (/polyfills-es2015.js:3174)
 at drainMicroTaskQueue (/polyfills-es2015.js:3565)
</code></pre>