Inconsistent accessibility error with the following c# code. Why?

Question

Whats wrong with the following c# code? Compiler reports this error:

Inconsistent accessibility: parameter type \'ClassLibrary1.Interface1\' is less accessible than

Answer 1

Mark your interface as public:

public interface Interface1<T>

If you leave out the accessibility label, it defaults to internal, that is, only accessible to other classes within the assembly.

Answer 2

your "Interface1" isn't public..

public interface Interface1<T>
{
    bool IsDataValid();
    /* Other interfaces */
}

Answer 3

second solution is If your interface is not public then dont make your class public where you are making a handle of interface.