Error when project in Kentico Cloud has not activated the delivery API

[hades200082]

The Delivery API is not active by default on new projects.

This causes an unhandled exception when trying to run the generator against that project.

Unhandled Exception: System.InvalidOperationException: Sequence contains no elements
   at System.Linq.Enumerable.Aggregate[TSource](IEnumerable`1 source, Func`3 func)
   at CloudModelGenerator.TypeProviderCodeGenerator.GenerateCode() in C:\projects\cloud-generators-net\src\CloudModelGenerator\TypeProviderCodeGenerator.cs:line 46
   at CloudModelGenerator.CodeGenerator.GenerateTypeProvider() in C:\projects\cloud-generators-net\src\CloudModelGenerator\CodeGenerator.cs:line 61
   at CloudModelGenerator.Program.<>c__DisplayClass4_0.<Main>b__0() in C:\projects\cloud-generators-net\src\CloudModelGenerator\Program.cs:line 57
   at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
   at CloudModelGenerator.Program.Main(String[] args) in C:\projects\cloud-generators-net\src\CloudModelGenerator\Program.cs:line 67

[petrsvihlik]

Right, the app should output a friendly message. Something like:

The project (guid) is not accessible. Please make sure you've enabled the delivery API.

[kashifsoofi]

Is there a project id to be used for testing?

[petrsvihlik]

You can register at https://app.kenticocloud.com/ for free and use the generated sample project or you can create a new project and make sure you don't enable the Delivery API.

Also, it shouldn't throw an exception when you use a random Guid (Guid that's not associated with any project). I guess the API will treat both situations in the same way so this could be another way to test it.

[kashifsoofi]

This can be closed if the solution implemented is acceptable.

[petrsvihlik]

it's great that now it doesn't throw an exception.
i think we should go a one step further and show a friendly message (see above) instead of:

0 content type models were successfully created.
CustomTypeProvider class was not created.

because this is quite confusing

[JanLenoch]

Fixed by #49 .