The call is ambiguous between the following methods or properties: 'Umbraco.Web.UmbracoHelper.Media(params int[])' and 'Umbraco.Web.UmbracoHelper

Question

I tried recently to upgrade my website from U7.15.6 to U8. I just copied /bin /umbraco /config to my current website using FileZilla

When I tried to roll back to U7.1