YSOD: The type or namespace name 'RenderMacro' does not exist in the namespace 'Umbraco'

So Umbraco blew up when you tried to insert a macro on a razor page using some code like this @Umbraco.RenderMacro? You are probably missing the UmbracoContext in your view. 

My code was looking like this

@Umbraco.RenderMacro("FormsRenderForm", new { FormGuid = "1203e391-30bb-4ffc-8fe6-1785d609db92" })

And the error was as shown in the image above. Since I use highly specialized views with custom contructors and my own ViewModels I don't have the Umbraco Context exposed in my views per default. Instead I fetch the Context singleton when needed.

@{
    // create your own umbraco context
    var umbraco = new UmbracoHelper(UmbracoContext.Current);
}
@umbraco.RenderMacro("FormsRenderForm", new { FormGuid = "1203e391-30bb-4ffc-8fe6-1785d609db92" })

Success

Cheers