Magritte and Pier both currently *do not* work with Seaside 2.9. You
have to stick with Seaside 2.8.3 for now.
The manual load order is simple:
1. Magritte-Mode, Magritte-Tests, Magritte-Seaside
2. Pier-Model, Pier-Tests, Pier-Seaside
3. Pier Plugins: Pier-Squeak-Persistency, Pier-Security, Pier-Blog, ...
Lukas
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Lukas Renggli
http://www.lukas-renggli.ch