Program will not compile?

[vtecjerry]

public class TestBinaryTree {


public static void main(String[] args) {
BinaryTree<String> tree = new BinaryTree<String>();
tree.insert("George");
tree.insert("Michael");
tree.insert("Tom");
tree.insert("Adam");
tree.insert("Jones");
tree.insert("Peter");
tree.insert("Daniel");
printTree(tree);

System.out.println("\nAfter delete George: ");
tree.delete("George");
printTree(tree);

System.out.println("\nAfter delete Adam: ");
tree.delete("Adam");
printTree(tree);

System.out.println("\nAfter delete Michael: ");
tree.delete("Michael");
printTree(tree);

}

public static void printTree(BinaryTree tree){
// Traverse
System.out.print("Inorder (sorted): ");
tree.inorder();
System.out.print("\nPostorder: ");
tree.postorder();
System.out.print("\nPreorder: ");
tree.preorder();
System.out.print("\nThe number of nodes is " + tree.getSize());
System.out.println();
}
}


Gives me this:
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - cannot find symbol
symbol: class BinaryTree
location: class TestBinaryTree

[Norm]

Where is the definition for the class: BinaryTree? The compiler can not find it?