Tried calling native plugin, but not found in runtime

#1

I am trying to read Uid.IMEI from Ionic Native Uid plugin. I handled the runtime permission issue for Android 6 using Diagnostic, and then tried to read Uid.IMEI. But it is showing

Native: tried calling Uid.IMEI, but the Uid plugin is not installed.
Install the Uid plugin: 'ionic cordova plugin add https://github.com/hygieiasoft/cordova-plugin-uid'

I have tried removing and then re-installing the plugin. The issue is , this message is shown only after installing the app and then opening it . Later on, I don’t find this msg , rather IMEI is read perfectly .

here is the code snippet…

 getPermission() {

    this.diagnostic.getPermissionAuthorizationStatus(this.diagnostic.permission.READ_PHONE_STATE).then((status) => {
     
      if (status != this.diagnostic.permissionStatus.GRANTED) {

        this.diagnostic.requestRuntimePermission(this.diagnostic.permission.READ_PHONE_STATE).then((data) => {
         
          var imei = this.uid.IMEI;
          console.log("in promise imei "+ imei);
        })
      }
      else {
        console.log("We have the permission");
        console.log("IMEI granted ----------"+this.uid.IMEI);
      }


    }, (statusError) => {
      console.log(`statusError`);
      console.log(statusError);
    });
  }

After installing the app, the requestRuntimePermission block is executed and after user accepts , Uid plugin tried to read IMEI, here my app does not find the plugin ! After that, I exit the app, reopen it , then see the permission is already granted and IMEI is found.

IMEI granted ----------

I saw some solutions referring to async/await. I am using Ionic framework 2 , and can’t update to Ionic 3 now, since my project is a bit complex. Plz suggest anyone if it can be solved avoiding async/await.

#2

Where are you calling getPermission() from?
If you’re calling it when the app launches, try calling it after the platform is ready, like so

this.platform.ready().then(()=>{
getPermission();
}

and call it outside the constructor (maybe inside ionViewDidLoad() or so).
Good luck!

#3

I have called it within ionViewDidEnter() and platform.ready , but no luck ! First time after installing app, it is showing same msg,

tried calling Uid.IMEI, but the Uid plugin is not installed

After exiting app, reopening it, then shows the proper imei :frowning:

#4

Looks like something is causing it not to load when the app launches. Is it properly loaded in app.module.ts?