# Missing Less files

## Environment

<table>
 <tr>
  <td>Product</td>
  <td>Telerik UI for ASP.NET Core</td>
 </tr>
 <tr>
  <td>Progress Telerik UI for ASP.NET Core version</td>
  <td>2023.1.314</td>
 </tr>
</table>

## Description

I am upgrading my project to a Telerik UI for ASP.NET Core version later than `R1 2023 SP1`. Where can I find the `kendo.common.min.css` file and the `Images` folder of the distributions?

## Solution

As of the Telerik UI for ASP.NET Core `R1 2023 SP1` release, the Telerik UI for ASP.NET Core components no longer support Less themes and they will no longer be shipped with the component distribution packages.

The `kendo.common.min.css` file and `Images` folder which were a part of the Less themes' distribution have also been deprecated.

Telerik recommends using Sass-based themes going forward as suggested in the [Less to Sass Theme Migration](https://docs.telerik.com/aspnet-core/styles-and-layout/less-themes/less-themes-migration#less-to-sass-theme-migration) article.

This article also includes the mapping between the dropped Less thems and their respective Sass counterparts.

## See Also

* [Upgrade Troubleshooting](https://www.telerik.com/aspnet-core-ui/documentation/installation/upgrading/upgrade-troubleshooting)
* [Telerik UI for ASP.NET Core Breaking Changes](https://www.telerik.com/aspnet-core-ui/documentation/backwards-compatibility/2023-backwards-compatibility)
* [Telerik UI for ASP.NET Core Knowledge Base](https://docs.telerik.com/aspnet-core/knowledge-base)