Hi, I am upgrading a v6 to v7.0.0 website, I have followed the steps here https://our.umbraco.org/documentation/Installation/Upgrading/v7-upgrade and here https://our.umbraco.org/documentation/installation/upgrading/general.

I have yet to run the /install process. I have been faced with a YSOD (possibly caused by overwriting my web.config?). I saw this possibly related issue and have deleted the DLLs as advised in the action but with no luck.

Any advice?

Compiler Error Message: CS0234: The type or namespace name 'umbracobase' does not exist in the namespace 'umbraco.presentation' (are you missing an assembly reference?)

Source Error:

Line 6:  using umbraco.presentation.umbracobase;

error CS0234: The type or namespace name 'umbracobase' does not exist in the namespace 'umbraco.presentation' (are you missing an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionMethod' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionMethodAttribute' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionMethod' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionMethodAttribute' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionMethod' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionMethodAttribute' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtension' could not be found (are you missing a using directive or an assembly reference?)
error CS0246: The type or namespace name 'RestExtensionAttribute' could not be found (are you missing a using directive or an assembly reference?)