Scratch

I'm doing some more format hacking (kurt 2.0!), and I'm having some errors when reading a Scratch file that I've generated.

When I load the file in Scratch, I only get the message "Could not read project; file may be damaged". I'd like to see the full traceback. Is there any way to do that?

The bit I want to fix appears to be in "ScratchFrameMorph -> 'file read/write' -> openScratchProjectNamed:":

...
    [    projData _ f binary contentsOfEntireFile.
        newProj _ self extractProjectFrom: projData.
        projectInfo _ self extractInfoFrom: projData.
    ] ifError: [:err :rcvr | ^ self inform: 'Could not read project; file may be damaged' withDetails: '(', err, ')'].
...

But I can't remove that error (I just get a different one).

Any thoughts? Thanks!