Compiler Error CS8812

Cannot convert &Method group to non-function pointer type.

The address of an expression (for example, &Method) has no type and thus cannot be assigned to a non-function pointer variable.

The & operator is the address-of operator, used to return the address of its operand.

Example

The following sample generates CS8812:

// CS8812.cs (6,22)

unsafe class C
{
    static void Method()
    {
        void* ptr1 = &Method;
    }
}

To correct this error

Explicitly convert the expression to the required type (for example, a void delegate):

unsafe class C
{
    static void Method()
    {
        void* ptr1 = (delegate*<void>)&Method;
    }
}

See also

• Shouldn't method addresses be implicitly convertible to void* and thus allowing direct casts to function pointers with mismatched signatures?
• Casting function pointer directly to void and then a function pointer type causes crash.
• Address-of operator &