ExtentReport downloading error

I was trying to reference ExtentReport by downloading it via Nuguet test package. I am getting error. 

Severity Code Description Project File Line Suppression State
Warning NU1701 Package 'RazorEngine 3.10.0' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETCoreApp,Version=v2.2'. This package may not be fully compatible with your project. TestFramework C:\Users\aswat\OneDrive\Desktop\Selenium\TestFrameworkDemo\TestFramework\TestFramework.csproj 1

any input?