Visual Studio 2017 unable to load project

Question

I'm trying to load my VS2015 project into the newly installed VS2017RC but it keeps giving me the error (when loading or reloading):

Object reference not set to an instance of an object.

It also tells me:

"The project requires user input. Reload the project for more information",

but reload throws me the NullRef exception.

How do I know what is wrong with my VS Instance, where can I find info about the error?

I tried the Event Viewer but that has not been very resourceful.

UPDATE
Event viewer info

Answer 1

Possible cause #1:

Try adding this to your project file, or check if it has that or not:

<PropertyGroup>
  <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion> 
  <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath> 
</PropertyGroup>

Possible cause #2:

Removing the two import lines that contain:

 "Microsoft.WebApplication.targets"

Hope one of these works. The first one worked for me.