dotnetnuke - DDRMenu - Could not locate Razor Host Factory type: System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc -


we have tried upgrade dnn site v7.3.2 v8.0.3 upgrade failed , while rolling changes ddrmenu disappeared , logger shows. specified dll present in bin folder. can us?

[error] dotnetnuke.services.exceptions.exceptions - system.nullreferenceexception: object reference not set instance of object. @ dotnetnuke.web.razor.razorengine.render[t](textwriter writer, t model) [error] dotnetnuke.services.exceptions.exceptions - system.invalidoperationexception: not locate razor host factory type: system.web.mvc.mvcwebrazorhostfactory, system.web.mvc @ system.web.webpages.razor.webrazorhostfactory.createfactory(string typename) @ system.collections.concurrent.concurrentdictionary2.getoradd(tkey key, func2 valuefactory) @ system.web.webpages.razor.webrazorhostfactory.createhostfromconfigcore(razorwebsectiongroup config, string virtualpath, string physicalpath) @ system.web.webpages.razor.webrazorhostfactory.createhostfromconfig(string virtualpath, string physicalpath)

how did roll back? should have reverted old version of database , old files. did delete of files before restoring?


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