[Newbies] 3.9 reading 3.8 .pr

[Bert Freudenberg]

On Jan 29, 2007, at 17:43 , Ralph Johnson wrote:

> I have a .pr file that only contains a couple of workspaces.  In other
> words, it does not use eToys.

Projects to me are a part of etoys.

>   It does not work in 3.9, either.  The
> problem is that Morphic changed enough that 3.8 Morphs (and a
> workspace is a Morph) will not work in 3.9.  My workspace has lots of
> colored text, so I can't just save it to a text file and read it back
> in again.
>
> My guess is that this was not done on purpose, but it is still a pain
> in the neck.

I think there were reports that the major thing preventing project  
loading is the general class layout changes that were done to support  
traits. If it is just individual classes that changed, conversion  
methods can be provided that migrate instances on load.

- Bert -