Ionic native File.listDir: how to list files in Windows dataDirectory?

Ionic Native
1

I have an Ionic 4 / Cordova application using the File plugin, where I have some code similar to what I have in a test application here…

public async checkFile(): Promise<void> {
    try {
      await this.platform.ready();
      const cord = <any>cordova;
      if (cord.file == undefined) {
        throw "Cordova file plugin not found, are cordova plugins included with the installer?";
      }

      const baseFolder: string = cord.file.dataDirectory; // On windows is "ms-appdata:///local"
      console.log(`baseFolder: ${baseFolder}`);

      const exits = await this.file.checkDir(baseFolder, "");
      console.log(`exists: ${exits}`);
      
      const dirEntries = [];
      const entries: Entry[] = await this.file.listDir(baseFolder, "");
      console.log(`files...`);
      for (let entry of entries) {
        console.log(entry.name);
        dirEntries.push(entry.name);
      }
    } catch (error) {
      console.error(JSON.stringify(error));
    }
  }

This used to work in Ionic 3 when I had an older version of the plugin. And it still works on Android, but on Windows I get the correct path (ms-appdata:///local) , and the call to checkDir works, but now the this.file.listDir always gives

{"code":1,"message":"NOT_FOUND_ERR"}

It still works on Android, and pretty sure it also does on iOS, but not on Windows.

I have tried file.listDir(baseFolder, “./”); and file.listDir(baseFolder, “.”); but neither work.

I will list my package.json below.

Does anyone have any idead how I can now get this to work on Windows (10)?

Thanks in advance!

package.json...
{
  "name": "testfile",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "https://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "~8.1.2",
    "@angular/compiler": "~8.1.2",
    "@angular/core": "~8.1.2",
    "@angular/forms": "~8.1.2",
    "@angular/platform-browser": "~8.1.2",
    "@angular/platform-browser-dynamic": "~8.1.2",
    "@angular/router": "~8.1.2",
    "@ionic-native/core": "^5.0.0",
    "@ionic-native/file": "^5.15.0",
    "@ionic-native/splash-screen": "^5.0.0",
    "@ionic-native/status-bar": "^5.0.0",
    "@ionic/angular": "^4.7.1",
    "cordova-android": "^8.1.0",
    "cordova-plugin-file": "^6.0.2",
    "cordova-windows": "^6.0.1",
    "core-js": "^2.5.4",
    "rxjs": "~6.5.1",
    "tslib": "^1.9.0",
    "zone.js": "~0.9.1"
  },
  "devDependencies": {
    "@angular-devkit/architect": "~0.801.2",
    "@angular-devkit/build-angular": "~0.801.2",
    "@angular-devkit/core": "~8.1.2",
    "@angular-devkit/schematics": "~8.1.2",
    "@angular/cli": "~8.1.2",
    "@angular/compiler": "~8.1.2",
    "@angular/compiler-cli": "~8.1.2",
    "@angular/language-service": "~8.1.2",
    "@ionic/angular-toolkit": "~2.0.0",
    "@types/jasmine": "~3.3.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "^5.0.0",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-ionic-keyboard": "^2.2.0",
    "cordova-plugin-ionic-webview": "^4.1.2",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "jasmine-core": "~3.4.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.1.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.15.0",
    "typescript": "~3.4.3"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-file": {},
      "cordova-plugin-whitelist": {},
      "cordova-plugin-statusbar": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-webview": {},
      "cordova-plugin-ionic-keyboard": {}
    },
    "platforms": [
      "windows",
      "android"
    ]
  }
}
2

I have logged an issue for this (with extra diagnostics) here.