Error after creating web worker

[RicardoVaranda]

🐞 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: ....

Description

A clear and concise description of the problem...

After creating a web worker using the generate command once I serve the application it throws a lot of errors.

🔬 Minimal Reproduction

ng generate worker prime-calculations
ng serve

🔥 Exception or Error

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'.

🌍 Your Environment

Angular CLI: 8.0.2
Node: 10.14.2
OS: win32 x64
Angular: 8.0.0
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.800.2
@angular-devkit/build-angular     0.800.2
@angular-devkit/build-optimizer   0.800.2
@angular-devkit/build-webpack     0.800.2
@angular-devkit/core              8.0.2
@angular-devkit/schematics        8.0.2
@angular/cdk                      8.0.1
@angular/cli                      8.0.2
@angular/http                     7.2.15
@angular/material                 8.0.1
@ngtools/webpack                  8.0.2
@schematics/angular               8.0.2
@schematics/update                0.800.2
rxjs                              6.5.2
typescript                        3.4.5
webpack                           4.30.0

Anything else relevant?

[RicardoVaranda]

This app was recently updated from Angular 7 where tsconfig.app.json and tsconfig.spec.json were inside the src file.

tsconfig.app.json was updated with

"exclude": [
...
    "src/**/*.worker.ts"
...
]

Changing the directory to:

  "exclude": [
...
    "**/*.worker.ts"
...
  ]

Fixed the issue.

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