Thank you for contacting JetBrains Support. I'm glad to work with you on this ticket.
You can install Mono from here: https://www.mono-project.com/docs/getting-started/install/mac/. After installation, Rider should be able to detect it automatically. In case Rider fails to find Mono, you can manually set it via Rider Settings | Build, Execution, Deployment | Toolset and Build:
However, Mono is only needed when developing apps targeting .NET 4.8.1, which is a legacy technology. If you choose modern dotnet for “Target framework”, like dotnet 8 or 9, then Mono is not needed. In that case, please ensure you have installed dotnet SDK properly.
Thanks, Tom. It worked — I can now use C#. However, since I’m new to both C# and the Rider IDE, I’m running into several issues, and honestly, I’m not sure what’s going on.
The first issue is shown in the screenshot: in the sidebar, both Program.cs and the “Hello World” text are highlighted in red. Why is that happening?
Such issues are because there're problems in the code. You can view these problems in Problem View. Usually Rider would suggest quick fixes for these issues.
Hello Abir,
Thank you for contacting JetBrains Support. I'm glad to work with you on this ticket.
You can install Mono from here: https://www.mono-project.com/docs/getting-started/install/mac/. After installation, Rider should be able to detect it automatically. In case Rider fails to find Mono, you can manually set it via Rider Settings | Build, Execution, Deployment | Toolset and Build:
However, Mono is only needed when developing apps targeting .NET 4.8.1, which is a legacy technology. If you choose modern dotnet for “Target framework”, like dotnet 8 or 9, then Mono is not needed. In that case, please ensure you have installed dotnet SDK properly.
Let me know if you have any questions.
Regards,
Tom
Thanks, Tom. It worked — I can now use C#. However, since I’m new to both C# and the Rider IDE, I’m running into several issues, and honestly, I’m not sure what’s going on.
The first issue is shown in the screenshot: in the sidebar, both
Program.csand the “Hello World” text are highlighted in red. Why is that happening?Hello Abir,
Such issues are because there're problems in the code. You can view these problems in Problem View. Usually Rider would suggest quick fixes for these issues.
Regards,
Tom