Hello, Doing some research on how to add a class that is defined in an external file I came across an email Ge sent explaining this wasn't possible yet: https://lists.cs.princeton.edu/pipermail/chuck-users/2006-March/000440.html ===================================================================== foo.ck --- public class Foo { /* stuff */ } --- bar.ck --- machine.add( "foo.ck" ); Foo foo; // this won't pass the type checker --- running bar.ck first (the intended usage) would result in a type checker error 'unknown class Foo', since foo.ck won't be added until runtime and so 'Foo' is unknown when bar.ck is compiled. ===================================================================== I remember though him also saying that the way to add external functions (functions defined in an external file) was to create a classes that contains them. So is there any new way to add a class defined in an external class? Your help is greatly appreciated. JPa.