Conflicting versions of ASP.NET Web Pages detected: specified version is “1.0.0.0”, but the version in bin is “2.0.0.0”

From Conflicting versions of ASP.NET Web Pages detected: You need to set webpages:Version appSettings with appropriate value. In your case it has to be 2.0.0.0

<appSettings>
    <add key="webpages:Version" value="2.0.0.0"/>
</appSettings>