C#: Inconsistent accessibility: property type

Question

What\'s wrong with

public partial class MainWindow : Window
{
    public ObservableCollection Tabs { get; set; }
    public ICollectionV         


        

Answer 1

All of the information above is completely correct and works fine. I just want to add from personal experience that if you are using TFS and getting your project from TFS, different Visual Studio versions can also generate this error.

I entered a project with Visual Studio 2013 update 2 and synched with the TFS to get the solution. When I tried to run the project I got 80 errors. All of them were like "... less accessible than property...". Now it turns out I needed update 4. Once my Visual Studio was update I revered the changes and it worked perfectly.

This might be useful if none of the above works and you are using TFS.