This code is in Intro.guard.ts
import { Injectable } from ‘@angular/core’;
import { CanLoad, Route, Router, UrlSegment, UrlTree } from ‘@angular/router’;
import { Observable } from ‘rxjs’;
export const INTRO_KEY =‘intro-seen’;
import { Plugins } from ‘@capacitor/core’;
const {Storage} = Plugins;
@Injectable({
providedIn: ‘root’
})
export class IntroGuard implements CanLoad {
constructor(private router: Router){}
async canLoad(): Promise{
const hasSeenIntro = await Storage.get({ key: INTRO_KEY});
if(hasSeenIntro && (hasSeenIntro.value === 'true')){
return true;
}
else{
this.router.navigateByUrl('/intro',{replaceUrl:true});
return true;
}
}
}
This is my package.json
{
“name”: “WBGS”,
“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": "~12.1.1",
"@angular/core": "~12.1.1",
"@angular/fire": "^7.2.0",
"@angular/forms": "~12.1.1",
"@angular/platform-browser": "~12.1.1",
"@angular/platform-browser-dynamic": "~12.1.1",
"@angular/router": "~12.1.1",
"@capacitor/app": "1.0.6",
"@capacitor/core": "^3.0.0-rc.4",
"@capacitor/filesystem": "^1.0.6",
"@capacitor/haptics": "1.1.3",
"@capacitor/keyboard": "1.1.3",
"@capacitor/status-bar": "1.0.6",
"@ionic-native/core": "^5.36.0",
"@ionic-native/splash-screen": "^4.20.0",
"@ionic-native/status-bar": "^5.36.0",
"@ionic/angular": "^5.5.2",
"@ionic/storage": "^3.0.6",
"@ionic/storage-angular": "^3.0.6",
"@swimlane/ngx-datatable": "^20.0.0",
"bootstrap": "^5.1.3",
"firebase": "^9.4.0",
"rxfire": "^6.0.0",
"rxjs": "~6.6.0",
"sass": "^1.44.0",
"tslib": "^2.2.0",
"zone.js": "~0.11.4"
},
“devDependencies”: {
"@angular-devkit/build-angular": "~12.1.1",
"@angular-eslint/builder": "~12.0.0",
"@angular-eslint/eslint-plugin": "~12.0.0",
"@angular-eslint/eslint-plugin-template": "~12.0.0",
"@angular-eslint/template-parser": "~12.0.0",
"@angular/cli": "~12.1.1",
"@angular/compiler": "~12.1.1",
"@angular/compiler-cli": "~12.1.1",
"@angular/language-service": "~12.0.1",
"@capacitor/cli": "^3.0.0-rc.4",
"@ionic/angular-toolkit": "^4.0.0",
"@ionic/app-scripts": "^3.2.4",
"@types/jasmine": "~3.6.0",
"@types/jasminewd2": "~2.0.3",
"@types/node": "^12.11.1",
"@typescript-eslint/eslint-plugin": "4.16.1",
"@typescript-eslint/parser": "4.16.1",
"eslint": "^7.6.0",
"eslint-plugin-import": "2.22.1",
"eslint-plugin-jsdoc": "30.7.6",
"eslint-plugin-prefer-arrow": "1.2.2",
"jasmine-core": "~3.8.0",
"jasmine-spec-reporter": "~5.0.0",
"karma": "~6.3.2",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage": "~2.0.3",
"karma-coverage-istanbul-reporter": "~3.0.2",
"karma-jasmine": "~4.0.0",
"karma-jasmine-html-reporter": "^1.5.0",
"protractor": "~7.0.0",
"ts-node": "~8.3.0",
"typescript": "~4.2.4"
},
“description”: “An Ionic project”
}
And this is the error i got
core.js:6479 ERROR Error: Uncaught (in promise): TypeError: Cannot read properties of undefined (reading ‘get’)
TypeError: Cannot read properties of undefined (reading ‘get’)
at IntroGuard. (main.js:250)
at Generator.next ()
at vendor.js:117087
at new ZoneAwarePromise (polyfills.js:11276)
at __awaiter (vendor.js:117083)
at IntroGuard.canLoad (main.js:249)
at vendor.js:88045
at Array.map ()
at ApplyRedirects.runCanLoadGuards (vendor.js:88041)
at ApplyRedirects.getChildConfig (vendor.js:88023)
at resolvePromise (polyfills.js:11191)
at resolvePromise (polyfills.js:11145)
at polyfills.js:11257
at ZoneDelegate.invokeTask (polyfills.js:10370)
at Object.onInvokeTask (vendor.js:70398)
at ZoneDelegate.invokeTask (polyfills.js:10369)
at Zone.runTask (polyfills.js:10141)
at drainMicroTaskQueue (polyfills.js:10556)