[plt-scheme] Installing Datalog

From: Carl Eastlund (carl.eastlund at gmail.com)
Date: Sun Nov 1 22:03:25 EST 2009

Ah.  Yes, the cache persists.  Run:

planet show

Check the version of datalog.plt you have, then run the following,
updating the major and minor version numbers if necessary:

planet remove jaymccarthy datalog.plt 1 1

Then run "planet show" again to make sure it's gone.  Now install again:

planet install jaymccarthy datalog.plt 1 2

Good luck!


On Sun, Nov 1, 2009 at 9:59 PM, Mark Engelberg <mark.engelberg at gmail.com> wrote:
> Yes, I've restarted DrScheme several times since installing datalog.
> My laptop went into standby in the middle of the first time I
> installed it, so I'm wondering if the interruption left it in a state
> where the language is in the cache, but it didn't complete the change
> to the language menu.  That's why I uninstalled and reinstalled
> Scheme.  But it didn't make a difference.  (Does the cache persist
> between uninstalling and reinstalling?  If so, is there a way to
> explicitly flush the planet cache?)
> On Sun, Nov 1, 2009 at 6:41 PM, Carl Eastlund <carl.eastlund at gmail.com> wrote:
>> Mark,
>> You must restart DrScheme after installing a planet package for any
>> changes in the Language menu to show up.  You might consider closing
>> DrScheme and installing with this command line:
>> planet install jaymccarthy datalog.plt 1 1
>> Then start DrScheme and try the language menu.
>> If you have been restarting DrScheme, I don't know what's wrong.  But
>> it definitely won't update while it's running.
>> Carl Eastlund
>> On Sun, Nov 1, 2009 at 9:37 PM, Mark Engelberg <mark.engelberg at gmail.com> wrote:
>>> In 4.2.2, I've run
>>> #lang scheme
>>> (require (planet jaymccarthy/datalog:1:1))
>>> and Datalog is not appearing in my list of Experimental Languages.
>>> I've tried uninstalling and reinstalling Scheme and repeating the
>>> above steps, but to no avail.
>>> Anyone know what I'm doing wrong?
>>> Thanks,
>>> Mark

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