[plt-scheme] object-debugger.plt won't compile

When I require the new object-debugger.plt I get the following error 
message:

unit: exported variable is not defined
setup-plt: Error during Compiling .zos for Object Debugger (C:\Documents 
and Settings\kyle\Application Data\PLT 
Scheme\planet\300\360.1\cache\plt\object-debugger.plt\1\0)

Thanks, 

--kyle

Kyle Smith
airfoil at bellsouth dot net
schemekeys.blogspot.com