The module './product' could not be located, resulting in error TS2307

app/product-detail.component.ts(2,22): error TS2307: Cannot find module './product'.

I have tried several solutions but none of them seem to work for me. I am working on a demo app in Angular 2 and encountering this specific error. Any guidance on where my mistake might be would be greatly appreciated. Here is the structure of my code:

Folder structure-

app
    app.component.ts
    app.module.ts
    product.service.ts
    product.ts
    product-detail.component.ts
    main.ts
    mock-products.ts
node_modules ...
index.html
package.json
styles.css
systemjs.config.js
tsconfig.json

product.ts-

  // product.ts
    export class product {
      id: number;
      name: string;
    }

product-detail.compenent.ts-

//product-detail.compenent.ts

import {Component,Input} from '@angular/core';
import { Product } from './product';
@Component({
    selector:'my-product-detail',
    template: `
  <div *ngIf="hero">
    <h2>{{product.name}} details!</h2>
    <div><label>id: </label>{{product.id}}</div>
    <div>
      <label>name: </label>
      <input [(ngModel)]="product.name" placeholder="name"/>
    </div>
  </div>
})

export class ProductDetailComponent{
 @Input()
  product: Product;
}

product.service.ts-

\\product.service.ts

import { Injectable } from '@angular/core';
import { product} from './product';
import { PRODUCTS} from './mock-products'

@Injectable()
export class ProductService{
    getProducts():Promise<product[]>{
        return Promise.resolve(PRODUCTS);
    }
}

mock-products.ts-

//mock-products.ts

import { Product} from './product';

export const PRODUCTS: Product[] = [
  { id: 11, name: 'product1' },
  { id: 12, name: 'product2' },
  { id: 13, name: 'product3' },
  { id: 14, name: 'product4' },
  { id: 15, name: 'product5' },
  { id: 16, name: 'product6' },
  { id: 17, name: 'product7' },
  { id: 18, name: 'product8' },
  { id: 19, name: 'product9' },
  { id: 20, name: 'product10' }
];

Answer №1

The name of your product category should begin with a lowercase 'p' instead of an uppercase 'P'. Ensure that in your product-details.component.ts

You need to include product instead of Product as shown in product-service.ts. Remember that the letter casing matters.

Answer №2

In order to follow coding conventions, ensure that the class name starts with a capital letter:

export class Item { //this one
  id: number;
  name: string;
}

Answer №3

Within the file product-detail.component.ts, it is necessary to include the line

import { Product } from '@angular/core'
based on your specific folder structure.

This can be accomplished in two ways:

import { Product } from './product';   // if the files are located within the same directory

or

import { Product } from '../product';  // if the files are in different directories, adjust path accordingly.

import {Component, Input} from '@angular/core';
import { Product } from './product';    // HERE
@Component({
selector: 'my-product-detail',
template: `
  <div *ngIf="hero">
    <h2>{{product.name}} details!</h2>
    <div><label>id: </label>{{product.id}}</div>
    <div>
      <label>name: </label>
      <input [(ngModel)]="product.name" placeholder="name"/>
    </div>
  </div>
})

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