Cant export service from module 'it was neither declared nor imported'

Question

I am trying to export an Service from one of my modules but i only get the following error:

ERROR Error: Uncaught (in promise): 
Error: Can't export value ConfirmDialogService from SharedModule as it was neither declared nor imported!

My Module is the following:

import { NgModule }                 from "@angular/core";
import { CommonModule }             from "@angular/common";
import { FormsModule }              from "@angular/forms";
import { RouterModule }             from "@angular/router";
import { MaterialModule }           from "@angular/material";

import { ConfirmDialogComponent }       from './confirm-dialog/confirm-dialog.component';
import { ConfirmDialogService }         from './confirm-dialog/confirm-dialog.service';

@NgModule({
    imports: [
        RouterModule,
        CommonModule,
        MaterialModule,
        FormsModule
    ],
    providers: [
        ConfirmDialogService
    ],
    declarations: [
        ConfirmDialogComponent 
    ],
    exports: [
        ConfirmDialogComponent 
        ConfirmDialogService
    ]
})
export class SharedModule {}

The files do exist and are referenced correctly in TS but when running the app the error appears.

this question was marked duplicate but couldn't able to find other article or its reference here which provides its solution. — Mukesh Rathore, Oct 17 '19 at 17:22

score 107 · Accepted Answer · edited Aug 22 '17 at 16:22

107

You don't need to list services in exports, and you can only list components, directives, and pipes. For services, providers is relevant, but otherwise a TypeScript import is enough.

edited Aug 22 '17 at 16:22

Pezetter

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answered May 23 '17 at 11:29

Günter Zöchbauer

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In current Angular 8 version, we need to have import statement in public_api.ts for services. – Mukesh Rathore Oct 17 '19 at 17:25
I haven't found confirmation for that in https://github.com/angular/angular/blob/master/CHANGELOG.md. Where did you get this from? – Günter Zöchbauer Oct 17 '19 at 17:53

Cant export service from module 'it was neither declared nor imported'

1 Answers1