# #problem

## `#problem`

A privately stored [problem](https://error.angular-package.dev/getting-started/basic-concepts#problem) of a [`string`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String) type.

{% code title="common-error.class.ts" %}

```typescript
#problem: string;
```

{% endcode %}

### Type

#### [<mark style="color:green;">`string`</mark>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)