# Help with Page not found not work Slim Exception HttpNotFoundException

**URL:** https://discourse.slimframework.com/t/help-with-page-not-found-not-work-slim-exception-httpnotfoundexception/3715
**Category:** Questions
**Created:** [December 12, 2019, 3:55pm UTC](https://discourse.slimframework.com/t/help-with-page-not-found-not-work-slim-exception-httpnotfoundexception/3715 "2019-12-12T15:55:51Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![odan](https://avatars.discourse-cdn.com/v4/letter/o/9de053/32.png) [@odan](https://discourse.slimframework.com/u/odan)
#### Post date: [December 17, 2019, 8:44am UTC](https://discourse.slimframework.com/t/help-with-page-not-found-not-work-slim-exception-httpnotfoundexception/3715/5 "2019-12-17T08:44:24Z")

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> [@gleysonabreu](#):
>
> HttpNotFoundException

This sounds like an issue with a sub-directory (base path). Do you run your slim app in a sub-directory? [Slim 4 - HttpNotFoundException - #18 by Quentin](https://discourse.slimframework.com/t/slim-4-httpnotfoundexception/3273/18)

```php
$app->setBasePath("/your-alias");

```

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