Hi tex,
Follow the following steps:
1. Update visual studio to latest version.
2. Remove all binding redirects from web.config.
3. Add below to the .csproj file.
<PropertyGroup>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
<GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
</PropertyGroup>
4. Clean and Build the project.
5. In bin folder ApplicationName.dll.config file have redirects in it, copy those to the web.config.