Encountering Duplicate Identifier Error while working on Angular 2 Typescript in Visual Studio Code

Question

Encountering Duplicate Identifier Error while working on Angular 2 Typescript in Visual Studio Code

Currently attempting to configure a component in Angular 2 with Typescript using Visual Studio Code on Mac. Encounter the following errors when trying the code below:

duplicate identifier 'Component'.

and

Duplicate identifier' DashboardComponent'.

import {Component} from 'angular2/core';

@Component({
   selector: 'dashboard',
   templateUrl: './dashboard.component.html'
})

export class DashboardComponent {

}

Here is how my file structure is organized:

app
-dashboard
--dashboard.component.html
--dashboard.component.ts
-app.component.html
-app.component.ts
-main.ts
index.html

The DashboardComponent class is only used in one place in the code.

Uncertain if this issue stems from Visual Studio Code or Typescript/Angular2. Any insights on what could be causing these errors?

visual-studio typescript angular

Answer 1

Answer №1

One common issue that can lead to these types of problems is having duplicate identifiers exported multiple times within your project, particularly in d.ts files that are deeply nested within your folder structure. To resolve this error, the typical approach involves excluding certain folders like 'node_modules' and either 'browser' or 'main' typings if you are using them, leaving only one instance. This can be achieved by utilizing the "exclude" section in your tsconfig.json file. A standard tsconfig setup might look something like this:

{ 
    "compilerOptions": { 
    },
    "exclude": [
        "node_modules",
        "dist",
        "typings/browser.d.ts",
        "typings/browser/**"
    ]
}

I hope you find this information helpful.

Answer 2

One common issue that can lead to these types of problems is having duplicate identifiers exported multiple times within your project, particularly in d.ts files that are deeply nested within your folder structure. To resolve this error, the typical approach involves excluding certain folders like 'node_modules' and either 'browser' or 'main' typings if you are using them, leaving only one instance. This can be achieved by utilizing the "exclude" section in your tsconfig.json file. A standard tsconfig setup might look something like this:

{ 
    "compilerOptions": { 
    },
    "exclude": [
        "node_modules",
        "dist",
        "typings/browser.d.ts",
        "typings/browser/**"
    ]
}

I hope you find this information helpful.

Encountering Duplicate Identifier Error while working on Angular 2 Typescript in Visual Studio Code

Answer №1

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