我收到“不一致的可訪問性”錯誤

Question

public class Employee : IEmployee
{
    private String name;
    private String department;
    private int salary;
    private List<IEmployee> subordinates;

    public void addEmployee(String name, String department, int salary)
    {
        this.name = name;
        this.department = department;
        this.salary = salary;
    }

    public void addSubordinate(IEmployee e)
    {
        subordinates.add(e);
    }

interface IEmployee
{
    void addEmployee(String name, String department, int salary);
    String getEmployeeInfo();
    void addSubordinate(IEmployee e);
}

public void If_We_Add_Alan_As_Johns_Subordinate_We_SHould_get_that()
{
        ObjectFactory.Configure(x =>
        {
            x.For<IEmployee>().Use<Employee>();
        });
        var DairyManager = ObjectFactory.GetInstance<IEmployee>();
        var Cashier = ObjectFactory.GetInstance<IEmployee>();

        Cashier.addEmployee("Alan", "cashier", 1000);
        DairyManager.addEmployee("John", "CEO", 10000);
        DairyManager.addSubordinate(Cashier); 

錯誤說：

可訪問性不一致：與方法Employee.addSubordinate(Supermarket.IEmployee)相比，參數類型IEmployee的訪問性較差...

Answer 1

您尚未為界面提供訪問修飾符：

interface IEmployee

因此， 默認（隱式）訪問修飾符為internal 。 只需添加public ，就像這樣：

public interface IEmployee

Answer 2

您應該將接口標記為公共。

public interface IEmployee

由於Employee的訪問修飾符是公共的，因此對於Employee實現的interfaces也應保持相同。

Answer 3

您只需要在界面中添加可訪問性修飾符即可：

public interface IEmployee

這將修復錯誤。