ng serve produces error with web worker active on old project

[ErwSim]

🐞 Bug report

Command (mark with an x)

- [ ] new
- [ ] build
- [x] serve
- [ ] test
- [ ] e2e
- [x] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Is this a regression?

Yes, the previous version in which this bug was not present was: ....

Previous version did not include web worker

Description

A clear and concise description of the problem...

I created a project with Angular CLI 7.0.3 some months ago
When I ng generate web-worker it generates well, and update files that have to be updated
But, I had an error that I describe below.

I tried to reproduce with a Angular 8 new project and failed to.
I checked differences between my Angular 7 generated project some months ago and the new one, here they are:

• tsconfig.app.json does not have a key "include"
• tsconfig.app.json was in src folder

So I

• moved tsconfig.app.json/tsconfig.spec.json to the parent folder
• added the line "include": ["src/**/*.ts"], in tsconfig.app.json
• updated "extends": "../tsconfig.json" to "extends": "./tsconfig.json", in tsconfig.app.json
• updated {projet: architect: options: tsConfig: "src/tsconfig.app.json"} to {projet: architect: options: tsConfig: "tsconfig.app.json"} in tsconfig.json

And it worked

🔬 Minimal Reproduction

Create a project with Angular CLI 7.0.3 (didn't test any other version)
Update to Angular 8
Add a web-worker
then ng serve

🔥 Exception or Error

ng serve
                                                                                          
Date: 2019-06-15T21:07:26.342Z
Hash: 758714cb0ed3c86959a4
Time: 10368ms
chunk {main} main.js, main.js.map (main) 1.91 kB [initial] [rendered]
chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 145 kB [initial] [rendered]
chunk {runtime} runtime.js, runtime.js.map (runtime) 6.08 kB [entry] [rendered]
chunk {scripts} scripts.js, scripts.js.map (scripts) 407 kB [entry] [rendered]
chunk {styles} styles.js, styles.js.map (styles) 1.36 MB [initial] [rendered]
chunk {vendor} vendor.js, vendor.js.map (vendor) 327 kB [initial] [rendered]

ERROR in node_modules/typescript/lib/lib.dom.d.ts(25,1): error TS6200: Definitions of the following identifiers conflict with those in another file: EventListenerOrEventListenerObject, BlobPart, HeadersInit, BodyInit, RequestInfo, DOMHighResTimeStamp, CanvasImageSource, MessageEventSource, ImageBitmapSource, TimerHandler, PerformanceEntryList, VibratePattern, AlgorithmIdentifier, HashAlgorithmIdentifier, BigInteger, NamedCurve, GLenum, GLboolean, GLbitfield, GLint, GLsizei, GLintptr, GLsizeiptr, GLuint, GLfloat, GLclampf, TexImageSource, Float32List, Int32List, BufferSource, DOMTimeStamp, FormDataEntryValue, IDBValidKey, Transferable, BinaryType, ClientTypes, EndingType, IDBCursorDirection, IDBRequestReadyState, IDBTransactionMode, KeyFormat, KeyType, KeyUsage, NotificationDirection, NotificationPermission, PushEncryptionKeyName, PushPermissionState, ReferrerPolicy, RequestCache, RequestCredentials, RequestDestination, RequestMode, RequestRedirect, ResponseType, ServiceWorkerState, ServiceWorkerUpdateViaCache, VisibilityState, WebGLPowerPreference, WorkerType, XMLHttpRequestResponseType
node_modules/typescript/lib/lib.dom.d.ts(3473,5): error TS2687: All declarations of 'privateKey' must have identical modifiers.
node_modules/typescript/lib/lib.dom.d.ts(3474,5): error TS2687: All declarations of 'publicKey' must have identical modifiers.
node_modules/typescript/lib/lib.webworker.d.ts(25,1): error TS6200: Definitions of the following identifiers conflict with those in another file: EventListenerOrEventListenerObject, BlobPart, HeadersInit, BodyInit, RequestInfo, DOMHighResTimeStamp, CanvasImageSource, MessageEventSource, ImageBitmapSource, TimerHandler, PerformanceEntryList, VibratePattern, AlgorithmIdentifier, HashAlgorithmIdentifier, BigInteger, NamedCurve, GLenum, GLboolean, GLbitfield, GLint, GLsizei, GLintptr, GLsizeiptr, GLuint, GLfloat, GLclampf, TexImageSource, Float32List, Int32List, BufferSource, DOMTimeStamp, FormDataEntryValue, IDBValidKey, Transferable, BinaryType, ClientTypes, EndingType, IDBCursorDirection, IDBRequestReadyState, IDBTransactionMode, KeyFormat, KeyType, KeyUsage, NotificationDirection, NotificationPermission, PushEncryptionKeyName, PushPermissionState, ReferrerPolicy, RequestCache, RequestCredentials, RequestDestination, RequestMode, RequestRedirect, ResponseType, ServiceWorkerState, ServiceWorkerUpdateViaCache, VisibilityState, WebGLPowerPreference, WorkerType, XMLHttpRequestResponseType
node_modules/typescript/lib/lib.webworker.d.ts(85,5): error TS2687: All declarations of 'privateKey' must have identical modifiers.
node_modules/typescript/lib/lib.webworker.d.ts(86,5): error TS2687: All declarations of 'publicKey' must have identical modifiers.
node_modules/typescript/lib/lib.webworker.d.ts(1074,5): error TS2375: Duplicate number index signature.
node_modules/typescript/lib/lib.webworker.d.ts(1360,5): error TS2375: Duplicate number index signature.
node_modules/typescript/lib/lib.webworker.d.ts(1434,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'FormData' must be of type '{ new (form?: HTMLFormElement): FormData; prototype: FormData; }', but here has type '{ new (): FormData; prototype: FormData; }'.
node_modules/typescript/lib/lib.webworker.d.ts(2170,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'Notification' must be of type '{ new (title: string, options?: NotificationOptions): Notification; prototype: Notification; readonly maxActions: number; readonly permission: NotificationPermission; requestPermission(deprecatedCallback?: NotificationPermissionCallback): Promise<...>; }', but here has type '{ new (title: string, options?: NotificationOptions): Notification; prototype: Notification; readonly maxActions: number; readonly permission: NotificationPermission; }'.
node_modules/typescript/lib/lib.webworker.d.ts(4322,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'onmessage' must be of type '(this: Window, ev: MessageEvent) => any', but here has type '(this: DedicatedWorkerGlobalScope, ev: MessageEvent) => any'.
node_modules/typescript/lib/lib.webworker.d.ts(4332,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'location' must be of type 'Location', but here has type 'WorkerLocation'.
node_modules/typescript/lib/lib.webworker.d.ts(4333,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'onerror' must be of type 'OnErrorEventHandlerNonNull', but here has type '(this: DedicatedWorkerGlobalScope, ev: ErrorEvent) => any'.
node_modules/typescript/lib/lib.webworker.d.ts(4335,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'self' must be of type 'Window', but here has type 'WorkerGlobalScope'.
node_modules/typescript/lib/lib.webworker.d.ts(4344,13): error TS2403: Subsequent variable declarations must have the same type.  Variable 'navigator' must be of type 'Navigator', but here has type 'WorkerNavigator'.

** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **
ℹ ｢wdm｣: Failed to compile.

🌍 Your Environment

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI: 8.0.3
Node: 12.3.1
OS: linux x64
Angular: 8.0.1
... animations, cdk, common, compiler, compiler-cli, core, forms
... language-service, material, material-moment-adapter
... platform-browser, platform-browser-dynamic, router
... service-worker

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.800.3
@angular-devkit/build-angular     0.800.3
@angular-devkit/build-optimizer   0.800.3
@angular-devkit/build-webpack     0.800.3
@angular-devkit/core              8.0.3
@angular-devkit/schematics        8.0.3
@angular/cli                      8.0.3
@angular/pwa                      0.800.3
@ngtools/webpack                  8.0.3
@schematics/angular               8.0.3
@schematics/update                0.800.3
rxjs                              6.5.2
typescript                        3.4.5
webpack                           4.30.0
    

Anything else relevant?

Please excuse my poor english
If anything is not comprehensible enough do not hesitate to say it to me.

Have a nice day :)

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