Error in CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER [or a callee]: Couldn't protect
Subject: Error in CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER [or a callee]: Couldn't protect
From: Stefano Ferri
Date: Thu, 30 Jul 2009 14:22:23 +0200
Newer versions of Maxima don't give that error. Try upgrading to latest version.
I get this ouptput with Maxima 5.17.0:
(%i1) for i:2 thru 800 step 1 do if equal(divsum(i), 2*i) then display(i)$
i = 6
i = 28
i = 496
Stefano
2009/7/30 Stephan Lukits <stephan at lukits.de>:
> Hello everybody,
> getting the following disturbing output:
>
> Maxima 5.13.0 http://maxima.sourceforge.net
> Using Lisp GNU Common Lisp (GCL) GCL 2.6.8 (aka GCL)
> Distributed under the GNU Public License. See the file COPYING.
> Dedicated to the memory of William Schelter.
> This is a development version of Maxima. The function bug_report()
> provides bug reporting information.
>
> (%i1) for i:2 thru 800 step 1 do if equal(divsum(i), 2*i) then ?display(i)$
>
> (*) i=6
> (*) i=28
> Maxima encountered a Lisp error:
>
> ?Error in CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER [or a callee]:
> Couldn't protect
>
> Automatically continuing.
> To reenable the Lisp debugger set *debugger-hook* to nil.
>
>
> what can a new-bee do about this?
>
> Thanks for any help.
> Stephan
>
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