[lively-kernel] ObjectGraphLinearizer is trying to deserializer instance of lively.Presentation.PageMorph but this class cannot be found

Robert Krahn robert.krahn at gmail.com
Sat Sep 8 07:37:31 CEST 2012

You can simply link the PartsBin:

workspace=`lk scripts-dir`/workspace
ln -s $workspace/PartsBin $workspace/ww/PartsBin

The next version of livelykernel-scripts will do that automatically.


On Fri, Sep 7, 2012 at 1:11 PM, Andy Burnett <
andy.burnett at knowinnovation.com> wrote:

> Thanks for the options.
> I tried using the --checkout-ww command. It pulled down a complete copy of
> the core BUT the PartsBin folder only contained a single folder called zp,
> which was empty.
> I did a lk partsbin, and that seemed to bring down the full partsbin.
> However, looking at the error messages, it seems as though the core - as
> installed by the osx app doesn't include much in the apps directory.  I am
> currently shuffling things around to try to get one complete image.
> Cheers
> Andy
> On Fri, Sep 7, 2012 at 2:58 AM, Robert Krahn <robert.krahn at gmail.com>wrote:
>> This message appears because one object that you wanted to load is an
>> instance
>> of a class defined in a module that could not be loaded. In particular the
>> core repository does not include the module lively.Presentation (because
>> we do
>> not consider this as part of the core). So this is not a problem with your
>> installation but you could consider it as conceptional issue of using a
>> "remote" PartsBin, or, going one step farther of differentiating between
>> "objects" and "source code" at all.
>> This issue didn't came up until now because usage of the PartsBin only
>> happened from within the Webwerkstatt environment where all dependencies
>> are
>> available.
>> To solve this problem for now you can
>> 1. Work in the online wiki
>> http://lively-kernel.org/repository/webwerkstatt/
>> or
>> 2. Create a working copy of webwerkstatt locally using "lk workspace
>> --checkout-ww" and then start the server with "lk server --lk-dir `lk
>> scripts-dir`/workspace/ww" (all lk-scripts commands are documented here:
>> https://github.com/rksm/LivelyKernel/wiki/livelykernel-scripts)
>> This gives you a complete copy of webwerkstatt.
>> or
>> 3. Manually copy the required modules into "`lk scripts-dir`/workspace/lk"
>>  Since we want to go towards a model of distributed Lively installations
>> that
>> share object repositories like Webwerkstatt's PartsBin (as opposed to just
>> have the Webwerkstatt) we will work on a better and more general solution
>> for
>> that problem. As of now I can just offer you the solutions above.
>> Hope that helps,
>> Robert
>> On Thu, Sep 6, 2012 at 9:13 AM, Andy Burnett <
>> andy.burnett at knowinnovation.com> wrote:
>>> Hello
>>> I am playing around with the parts in the PartsBin - on my own server -
>>> and get this error message. The version of the lively-kernel server does
>>> work. So, am I missing something from my copy of the PartsBin (seems
>>> likely), or is there an add-on to the server that I don't have in my
>>> environment?
>>> And, related to the first question, how do I keep my copy of the
>>> PartsBin up to date? is there an svn update built into the server?
>>> Cheers
>>> Andy
>>> _______________________________________________
>>> lively-kernel mailing list
>>> lively-kernel at hpi.uni-potsdam.de
>>> http://lists.hpi.uni-potsdam.de/listinfo/lively-kernel
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