Lic. Edgar J. De Cleene wrote:
...
> FileOut from previous, fileIn in new (horrible solution)
> 
> I could solve loading problems by simple doing AbstractString := String, so
> this issue is solved. (Could be a simpler one , easy to add to image).
...

A much easier way in most cases to convert a package to the new Strings 
is to update the pre-String-refactoring image including the package via 
the update stream and only then to fileout the package.

Regards
Martin