Allocating Game Object name dynamically using Find

Hello,

I am having a problem accessing Game objects dynamically.

I have created a dictionary containing all game objects names, as well as the new instances I will be creating at run time.

The following error occurs at run time: " NullReference Exception: Object Reference not set in an instance of an object...etc"

I am trying to execute a code similar to this:

string name=checkDictionary(Id); // returns the name of a game object

Debug.Log(name); // prints the name correctly, the GameObject exists

Transform x = GameObject.Find(name).transform;

The above code works if I explicitly indicate the name of the game object, GameObject.Find("SomeName").transform;

I appreciate the help...Thanks in advance,

Regards