Replied 5 April 2020, 11:28 pm EST
We are sorry for the inconvenience, the Report API is not supported yet with Asp.Net Core3.0. It still requires the .NetFramework packages which are supported with 2.0.
The sample can be found at the following location for Report with Asp.Net Core.
ComponentOne Samples\Web Api\v4.5.2\CS\ASPNETCore\WebApi
Further, following are the steps to create the Api Project:
Open Visual Studio
Create a new project
Select the C1 template as the following image:
Select the location and name the project
Select the Asp.Net Core target to 2.0
Choose Create RunTime license
Select the Serial Key and project | Generate button
Hope it helps!