compilation issues in a shared library project

[Jonathan Villa via Digitalmars-d-learn]

Hello everyone!

I've been starting to use D but some compilation issues appears.
The proyect is just a class library made in Xamarin Studio and 
just contains 3 classes.

At compilation time it throws 7 errors:
Error: object.Object.opEquals could not be resolved - library 
reference missing?
Error: object.Object.opCmp could not be resolved - library 
reference missing?
Error: <log analysis error> Se produjo una excepción de tipo 
'System.OutOfMemoryException'. could not be resolved - library 
reference missing?
Error: object.Object.toString could not be resolved - library 
reference missing?
Error: Object could not be resolved - library reference missing?
Error: TypeInfo_Class.__vtbl could not be resolved - library 
reference missing?
Error: _d_newclass could not be resolved - library reference 
missing?

So, I tested commenting the 2 major classes and left just the 
basic one in order to try if it's something from the 2 majors. 
But the errors persists WITHOUT the last error in the list above.

There must be something that I'm missing.

Here is the code that defines my basic class:

module dt2.DataBlock;

class DataBlock
{
        public DataBlock * NextBlock;
        public DataBlock * PrevBlock;
        public string value;

        this()
        {
                NextBlock = null;
                PrevBlock = null;
                value = null;
        }

        this(string newvalue)
        {
                this();
                value = newvalue;
        }

        ~this()
        {
                value = "";
        }
}

AFAIK the Object type (from the Errors) is the base inheritance 
from classes, but in the Object module is implicitly imported 
(according to the documentation in 
http://dlang.org/phobos/object.html)

The project is shared library type. I tried to copy/paste this 
class definition in a console application and it don't throw 
errors.

Any suggestion? Thank you in advice.