Whilst trying to use Umazel Starter Kit on the latest version of Umbraco 7.6.3 I was getting the following Asp.Net Error:-

Compiler Error Message: CS0433: The type 'Umbraco.Web.PublishedContentModels.Pagehome' exists in both 'c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\3c224001\fb5ad5e1\App_Web_all.generated.cs.8f9494c4.zr84uuak.dll' and 'c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\3c224001\fb5ad5e1\assembly\dl3\4e0eb2b9\6e2d66f5_3ae0d201\Umbraco.Web.PublishedContentModels.DLL'

e.g.

This is odd as the start kit works fine in version 7.5 of Umbraco.

Fix

Open with Web.Config for Umbraco in default Directory and find (usual under appSettings):-

<add key="Umbraco.ModelsBuilder.Enable" value="PureLive" />

change the value from ="PureLive" to ="Dll" e.g.

<add key="Umbraco.ModelsBuilder.Enable" value="Dll" />