[4.0.0-beta.5] Error while running ionic serve

Bug Report

Ionic Info Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.1.1 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.5
   @angular-devkit/core       : 0.7.5
   @angular-devkit/schematics : 0.7.5
   @angular/cli               : 6.1.5
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : android 7.1.1
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.2, cordova-plugin-ionic-webview 2.1.0, (and 6 other plugins)

System:

   ios-deploy : 1.9.2
   ios-sim    : 5.0.6
   NodeJS     : v10.8.0 (/usr/local/Cellar/node/10.8.0/bin/node)
   npm        : 6.4.0
   OS         : macOS High Sierra
   Xcode      : Xcode 9.3 Build version 9E145

Describe the Bug When I run ionic serve I get the following error.

[ng] ℹ ｢wdm｣: wait until bundle finished: /
[ng] Date: 2018-08-28T15:17:39.012Z
[ng] Hash: 970b0c211bd9b67b4707
[ng] Time: 9271ms
[ng] chunk {main} main.js, main.js.map (main) 1.92 kB [initial] [rendered]
[ng] chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 678 bytes [initial] [rendered]
[ng] chunk {runtime} runtime.js, runtime.js.map (runtime) 5.22 kB [entry] [rendered]
[ng] chunk {styles} styles.js, styles.js.map (styles) 39 kB [initial] [rendered]
[ng] chunk {vendor} vendor.js, vendor.js.map (vendor) 325 kB [initial] [rendered]
[ng] ERROR in node_modules/@ionic/angular/dist/directives/proxies.d.ts(3,35): error TS1005: ';' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(3,56): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(3,60): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(3,72): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,35): error TS1005: ';' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,55): error TS1005: ';' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,82): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,86): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,104): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,116): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,147): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,151): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,169): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,181): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,193): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,230): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,234): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,252): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,264): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,276): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,288): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,325): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,329): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,360): error TS1005: ',' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,398): error TS1005: '(' expected.
[ng] node_modules/@ionic/angular/dist/directives/proxies.d.ts(4,401): error TS1005: ')' expected.
[ng] node_modules/@ionic/core/dist/types/interface.d.ts(41,42): error TS1005: ';' expected.
[ng] node_modules/@ionic/core/dist/types/interface.d.ts(41,101): error TS1005: ']' expected.
[ng] node_modules/@ionic/core/dist/types/interface.d.ts(41,109): error TS1005: ',' expected.
[ng] node_modules/@ionic/core/dist/types/interface.d.ts(41,110): error TS1136: Property assignment expected.
[ng] ℹ ｢wdm｣: Failed to compile.

Steps to Reproduce My package.json

{
  "name": "ionic",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "http://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": "^6.1.4",
    "@angular/core": "^6.1.4",
    "@angular/forms": "^6.1.4",
    "@angular/http": "^6.1.4",
    "@angular/platform-browser": "^6.1.4",
    "@angular/platform-browser-dynamic": "^6.1.4",
    "@angular/router": "^6.1.4",
    "@ionic-native/camera": "^5.0.0-beta.14",
    "@ionic-native/core": "5.0.0-beta.14",
    "@ionic-native/firebase": "^5.0.0-beta.14",
    "@ionic-native/qr-scanner": "5.0.0-beta.14",
    "@ionic-native/splash-screen": "5.0.0-beta.14",
    "@ionic-native/status-bar": "5.0.0-beta.14",
    "@ionic/angular": "4.0.0-beta.5",
    "@ngrx/effects": "^6.1.0",
    "@ngrx/entity": "^6.1.0",
    "@ngrx/store": "^6.1.0",
    "@ngrx/store-devtools": "^6.1.0",
    "@ngx-translate/core": "^10.0.2",
    "@ngx-translate/http-loader": "latest",
    "angularfire2": "^5.0.0-rc.11",
    "cordova-android": "7.1.1",
    "cordova-browser": "^5.0.4",
    "cordova-ios": "4.5.5",
    "cordova-plugin-camera": "^4.0.3",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-firebase": "^1.0.5",
    "cordova-plugin-ionic-keyboard": "^2.1.2",
    "cordova-plugin-ionic-webview": "^2.1.0",
    "cordova-plugin-qrscanner": "^2.6.0",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-whitelist": "^1.3.3",
    "core-js": "^2.5.3",
    "firebase": "^5.4.1",
    "ngx-qrcode2": "0.0.9",
    "rxjs": "6.2.2",
    "web": "0.0.2",
    "zone.js": "^0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/architect": "^0.7.5",
    "@angular-devkit/build-angular": "^0.7.5",
    "@angular-devkit/core": "^0.7.5",
    "@angular-devkit/schematics": "^0.7.5",
    "@angular/cli": "^6.1.5",
    "@angular/compiler": "^6.1.4",
    "@angular/compiler-cli": "^6.1.4",
    "@angular/language-service": "^6.1.4",
    "@ionic/ng-toolkit": "^1.0.7",
    "@ionic/schematics-angular": "^1.0.0",
    "@ngrx/schematics": "^6.1.0",
    "@types/jasmine": "~2.8.6",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~10.5.2",
    "codelyzer": "~4.4.2",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.0",
    "karma-jasmine": "~1.1.1",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~2.7.2"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-firebase": {},
      "cordova-plugin-camera": {},
      "cordova-plugin-whitelist": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-webview": {},
      "cordova-plugin-ionic-keyboard": {},
      "cordova-plugin-qrscanner": {}
    },
    "platforms": [
      "browser",
      "ios",
      "android"
    ]
  }
}

This error is happening since I update to ionic beta.5

[fperez-eypscap]

this happened to me, you need to update typescript to 2.9.2

[russcarver]

2.9.2 did the trick. I tried 3.0.1 first but that yielded the error ERROR in The Angular Compiler requires TypeScript >=2.7.2 and <2.10.0 but 3.0.1 was found instead.