I'm trying to setup a development machine for upgrading Kentico 11 to 12. Version 11 is under TFS source control and packages are not added to source control.

On dev machine I used NuGet to add Kentico.Libraries and Kentico.Libraries.Web.UI packages.

The solution on dev machine is compiling, but I'm getting this runtime error when I try to browse to Kentico CMS

```
The file '/CMSModules/Chat/Controls/SupportChatHeader.ascx' does not exist

```

[![YSOD screenshot](https://i.stack.imgur.com/LLwVJ.png)](https://i.stack.imgur.com/LLwVJ.png)