templating: dotnet new -i not reporting errors and exclusions not working as expected

Doing some work on this PR at the moment. https://github.com/eShopWorld/template-webapi-fabric/pull/23

On my final test to install the template it just bombs out with no errors:

nuget pack C:\[path]\template-webapi-fabric\src\Eshopworld.WebAPIFabric.Template.nuspec

create new dir, navigate to it and run

dotnet new -i C:\[path]\template-webapi-fabric\src\Eshopworld.WebAPIFabric.Template.1.0.8.nupkg

The previous version does work as expected ie: 1.0.7. This is what is also in the master branch and creating this template on my machine runs just fine.

After you check what has been installed with 1.0.8 you are left with just the standard set of templates as outlined here:

Templates                                         Short Name         Language          Tags
----------------------------------------------------------------------------------------------------------------------------
Console Application                               console            [C#], F#, VB      Common/Console
Class library                                     classlib           [C#], F#, VB      Common/Library
Unit Test Project                                 mstest             [C#], F#, VB      Test/MSTest
NUnit 3 Test Project                              nunit              [C#], F#, VB      Test/NUnit
NUnit 3 Test Item                                 nunit-test         [C#], F#, VB      Test/NUnit
xUnit Test Project                                xunit              [C#], F#, VB      Test/xUnit
Razor Page                                        page               [C#]              Web/ASP.NET
MVC ViewImports                                   viewimports        [C#]              Web/ASP.NET
MVC ViewStart                                     viewstart          [C#]              Web/ASP.NET
ASP.NET Core Empty                                web                [C#], F#          Web/Empty
ASP.NET Core Web App (Model-View-Controller)      mvc                [C#], F#          Web/MVC
ASP.NET Core Web App                              webapp             [C#]              Web/MVC/Razor Pages
ASP.NET Core with Angular                         angular            [C#]              Web/MVC/SPA
ASP.NET Core with React.js                        react              [C#]              Web/MVC/SPA
ASP.NET Core with React.js and Redux              reactredux         [C#]              Web/MVC/SPA
Razor Class Library                               razorclasslib      [C#]              Web/Razor/Library/Razor Class Library
ASP.NET Core Web API                              webapi             [C#], F#          Web/WebAPI
global.json file                                  globaljson                           Config
NuGet Config                                      nugetconfig                          Config
Web Config                                        webconfig                            Config
Solution File                                     sln                                  Solution

Examples:
    dotnet new mvc --auth Individual
    dotnet new xunit
    dotnet new --help

Additionally, the exclusions within the https://github.com/eShopWorld/template-webapi-fabric/blob/bc04a29e681554861ccf35d287fc1c1702bbe883/src/.template.config/template.json do not seem to work as expected. I’ve tried a few varieties of options here and played them within the modifiers array as suggested here https://github.com/dotnet/templating/issues/850 but to no avail.

Any help on both issues would be appreciated.

Thanks Dave