At Sat, 14 May 2011 20:58:53 -0700, John Clements wrote:
> I've been having trouble with an older PLaneT package, and I've finally 
> narrowed it down to a problem with the change in version-numberings.
> 
> Specifically, I install Jens Soegaard's gzip.plt package (which installs all 
> right), and then I can't use it.  The problem turns out to be that planet 
> won't 
> let me run it, because it thinks that the required & provided versions of 
> racket are
> 
> #(struct:mz-version 40000 0)
> #(struct:mz-version 501 1005)
> 
> ... so I just need to wait for version 400.00 to come out!
> 
> I see how I can hack around this problem by editing the required-version in 
> the 
> info.ss file, but if I'm correct, this means that no planet packages that 
> precede the version-numbering change can be used.  It seems hard to believe 
> that this wouldn't have been noticed, though, so perhaps I'm wrong...

The version number change happened on February 4, but we decided that
it was a bad idea, and it was reverted on March 28. So, the version was
400 for all releases, and it's still 400.

It's possible that some planet packages were created with a pre-release
version in between 2/4 and 3/28, in which case those need to be fixed.
I don't think that's the case for "gzip.plt", though.

It sounds instead like you're using a pre-release version of Racket
from between 2/4 and 3/28. Is that right? If so, the solution would be
to upgrade.

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