Install Visual Studio at Mac

try download via this URL:

https://visualstudio.microsoft.com/thank-you-downloading-visual-studio-mac/?sku=communitymac&rel=16

I have installed Visual Studio before I ask this question.
The problem is I can not add reference to a project.

Thank you.

For Managing References in a Project
References
NuGets (Added via the Packages folder)

refer this links:
https://docs.microsoft.com/en-us/visualstudio/mac/managing-references-in-a-project?view=vsmac-2019
http://reference1.mapinfo.com/software/spectrum/lim/8_0/developerguide/Spatial/source/Development/gettingstarted/accessing/csharp.html

The problem is I can not add reference to a project.

any particular error/message prompting out?

There is no menu for add reference as we can do it at project explorer or project properties.

Thank you.

I see this link https://docs.microsoft.com/en-us/visualstudio/mac/vsmac-for-windows-users?view=vsmac-2019
There is no references menu.

See under the Menus at the link.

Thank you.

I didn't try visual studio in my MacBook pro, but you can refer to this and see if it's helpful?

Managing References in a Project
https://docs.microsoft.com/en-us/visualstudio/mac/managing-references-in-a-project?view=vsmac-2019

There is no References to select/click.

Thank you.

have you installed Visual Studio CODE or the full Visual Studio?