Getting Error while attaching an AppleScript file to a button.

Question

Hi. I hav created a xcode project using cocoa application. Also I hav add a .applescript file to that project. I hav attached dat file to a button. When I build the project, got the following error . Can anybody help me out this?

[Session started at 2010-03-02 13:02:03 +0530.]
GNU gdb 6.3.50-20050815 (Apple version gdb-966) (Tue Mar 10 02:43:13 UTC 2009)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-apple-darwin".sharedlibrary apply-load-rules all
Attaching to process 1705.
kill

The Debugger Debugger is attaching to process
[Session started at 2010-03-02 13:03:31 +0530.]
2010-03-02 13:03:31.452 test[1717:10b] An uncaught exception was raised
2010-03-02 13:03:31.453 test[1717:10b] *** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (ASKNibConnector)
2010-03-02 13:03:31.453 test[1717:10b] *** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: '*** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (ASKNibConnector)'
2010-03-02 13:03:31.454 test[1717:10b] Stack: (
    2510958571,
    2520804923,
    2510958027,
    2510958090,
    2486042959,
    2486048301,
    2486049449,
    2486041504,
    2486039829,
    2489002358,
    2486041504,
    2486039829,
    2488999761,
    2488998172,
    2488997215,
    2488997021,
    2488996172
)

[Session started at 2010-03-02 13:03:31 +0530.]
GNU gdb 6.3.50-20050815 (Apple version gdb-966) (Tue Mar 10 02:43:13 UTC 2009)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-apple-darwin".sharedlibrary apply-load-rules all
Attaching to process 1717.
kill