# Resolving Error: Uncaught (in promise): EmptyError: no elements in sequence

Source: https://tpiros.dev/blog/error-uncaught-in-promise-emptyerror-no-elements-in-sequence

Here's how to squash the `Error: Uncaught (in promise): EmptyError: no elements in sequence` error that the Angular router throws at you.

## Example

Say you've got this route definition:

```typescript
const routes: Routes = [
  { path: '', component: WelcomeComponent },
  { path: 'test', component: TestComponent }
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
```

The `WelcomeComponent` loads fine. But when you try to navigate to the `TestComponent` route, the error fires.

The reason is simple. A match on `/test` also matches `''` (the empty route definition), which triggers a cascade of errors.

## The fix

Add `pathMatch: 'full'` to the empty route definition:

```typescript
{ path: '', component: WelcomeComponent, pathMatch: 'full' },
```

That tells Angular to only match when the entire URL is empty. Error gone.