jGrasp compiling error -Help please!

[marywenn]

While trying to compile my project from the UML window I get the following error:
----jGRASP exec:

----jGRASP wedge2 internal error: too few arguments to wedge2.
----jGRASP: operation complete.

My code is as follows:

public class Unit2
{
//Prints Line


public static void main(String[] args)
{
System.out.println("Welcome!");
}
}


Any help would be much appreciated!