AOT build breaks core-js; TypeError: Cannot read property 'subscribe' of undefined

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Versions.

    _                      _                 ____ _     ___
   / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
  / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
 / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
/_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
               |___/
    
Angular CLI: 1.5.0
Node: 9.0.0
OS: linux x64
Angular: 5.0.1
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cdk: 5.0.0-rc0
@angular/cli: 1.5.0
@angular-devkit/build-optimizer: 0.0.32
@angular-devkit/core: 0.0.20
@angular-devkit/schematics: 0.0.35
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.8.0
@schematics/angular: 0.1.2
typescript: 2.6.1
webpack: 3.8.1

Repro steps.

1. here’s my package.json file

"dependencies": {
   "@angular/animations": "^5.0.0",
   "@angular/cdk": "^5.0.0-rc0",
   "@angular/common": "^5.0.0",
   "@angular/compiler": "^5.0.0",
   "@angular/core": "^5.0.0",
   "@angular/forms": "^5.0.0",
   "@angular/http": "^5.0.0",
   "@angular/platform-browser": "^5.0.0",
   "@angular/platform-browser-dynamic": "^5.0.0",
   "@angular/router": "^5.0.0",
   "@ng-bootstrap/ng-bootstrap": "^1.0.0-beta.2",
   "@swimlane/ngx-datatable": "^11.0.0",
   "angular2-moment": "^1.7.0",
   "bootstrap": "^4.0.0-alpha.6",
   "core-js": "^2.5.0",
   "font-awesome": "^4.7.0",
   "fuse.js": "^3.0.5",
   "ngx-infinite-scroll": "^0.6.1",
   "primeng": "^5.0.0-rc.0",
   "rxjs": "^5.4.3",
   "zone.js": "^0.8.17"
 },
 "devDependencies": {
   "@angular/cli": "1.5.0",
   "@angular/compiler-cli": "^5.0.0",
   "@angular/language-service": "^5.0.0",
   "@types/jasmine": "^2.5.54",
   "@types/node": "~8.0.25",
   "codelyzer": "~4.0.1",
   "jasmine-core": "~2.8.0",
   "jasmine-spec-reporter": "~4.2.1",
   "karma": "~1.7.0",
   "karma-chrome-launcher": "~2.2.0",
   "karma-cli": "~1.0.1",
   "karma-coverage-istanbul-reporter": "^1.3.0",
   "karma-jasmine": "~1.1.0",
   "karma-jasmine-html-reporter": "^0.2.2",
   "protractor": "~5.2.0",
   "ts-node": "~3.3.0",
   "tslint": "~5.8.0",
   "typescript": "=2.6.1"
 }

1. ng build --prod
2. serve the app

The log given by the failure.

core.js:1350 ERROR Error: Uncaught (in promise): TypeError: Cannot read property 'subscribe' of undefined
TypeError: Cannot read property 'subscribe' of undefined
    at createDirectiveInstance (core.js:12015)
    at createViewNodes (core.js:13449)
    at callViewAction (core.js:13881)
    at execComponentViewsAction (core.js:13790)
    at createViewNodes (core.js:13477)
    at callViewAction (core.js:13881)
    at execComponentViewsAction (core.js:13790)
    at createViewNodes (core.js:13477)
    at createRootView (core.js:13339)
    at callWithDebugContext (core.js:14740)
    at createDirectiveInstance (core.js:12015)
    at createViewNodes (core.js:13449)
    at callViewAction (core.js:13881)
    at execComponentViewsAction (core.js:13790)
    at createViewNodes (core.js:13477)
    at callViewAction (core.js:13881)
    at execComponentViewsAction (core.js:13790)
    at createViewNodes (core.js:13477)
    at createRootView (core.js:13339)
    at callWithDebugContext (core.js:14740)
    at resolvePromise (zone.js:824)
    at resolvePromise (zone.js:795)
    at zone.js:873
    at ZoneDelegate.webpackJsonp.../../../../zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:425)
    at Object.onInvokeTask (core.js:4620)
    at ZoneDelegate.webpackJsonp.../../../../zone.js/dist/zone.js.ZoneDelegate.invokeTask (zone.js:424)
    at Zone.webpackJsonp.../../../../zone.js/dist/zone.js.Zone.runTask (zone.js:192)
    at drainMicroTaskQueue (zone.js:602)
    at <anonymous>

Desired functionality.

looks like AOT build removes required dependencies, same build works when I run ng build --prod --aot=false

[filipesilva]

This seems like a bug but we’ll need to look at a reproduction to find and fix the problem. Can you setup a minimal repro please?

You can read here why this is needed. A good way to make a minimal repro is to create a new app via ng new repro-app and adding the minimum possible code to show the problem. Then you can push this repository to github and link it here.

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