hi.
first. sorry, I can use little english.
I downloaded the free version for a trial/evaluation.
I following tutorial - Spire.XLS for .NET Quick Start
1. download free version.
2. create project - c# on visual studio.
3. add reference "Spire.Xls" - I can show that add Solution Explorer and Object Browser.
4. typing "using Spire.Xls", and typing some code.
5. compile.
6. but I got message - 'The type or namespace name 'Spire' could not be found (are you missing a using directive or an assembly reference?)
7. do not compile. and disappear "Spire.Xls" on Object Browser, but exist "Spire.Xls" on Solution Explorer.
I don't use reference.
I guess... licence??
please answer me.
happy new year. thank you