Creating a simple application produces a MessageNotUnderstood]: Symbol does not understand: #theMetaclass in process UIPainter [564] error

[Patrik Svestka]

Steps to reproduce on 6.2.6.0 version:

1. Launch StX
2. Start GUIPainter via icon on StX Launcher
3. On a Canvas put two objects 'Entry Field' and a 'Slider'
4. Launch the application via the 'rocket' button
5. Fill Class TestingApplication?
6. Click on 'yes' when asked if Create Class TestingApplication?
7. An error is displayed - [MessageNotUnderstood?]: Symbol does not understand: #theMetaclass in process UIPainter [155]

The error stops in method: loadFromClass:aClass on line 15 - (aClass theMetaclass implements:helpSpecSelector) ifFalse:[

[Jan Vrany]

The problem is trivial, UIPainter>>doDefineClassAndSelector sends #buildAndMergeFromClass: passing as class name as parameter. However, UIHelpTool>>#buildAndMergeFromClass: expects a class object (instance of Class).

The complication here is that this is all in package stx:libtool2 which is checked out from eXept's CVS and we cannot commit there, so I have either to fork this package too or ask Claus to fix it for me. Will think of it, but there are so many problems in UI painter anyway so perhaps it's time to fork and fix.

[Patrik Svestka]

You have to count the pros and cons, what would that fork of stx:libtool2 mean in the end?

[Jan Vrany]

Replying to patrik.svestka@…:

You have to count the pros and cons, what would that fork of stx:libtool2 mean in the end?

In the end all it would take it is to add change couple configuration files here and there, not much.

There are more issues with UI Painter that might need some changes in its codebase e.g. #5, #46, #47, #97 and possibly more will come. So it's clear - fork it.

Will do it soon(ish).

[Jan Vrany]

OK, forked. You may need to update rakefiles, then remove (move aside) build/stx/libtool2, then rake chexkout and recompile rake compile.

[Jan Vrany]

Attached patch should fix it.