Following DeepIntoPharo, I tried to install PetitParser into my Pharo 5.0 image (I noticed PetitParser installation problem email in March). It failed with the message WinPlatform class was undefined. I went to Moose's PetitParser site in smalltalkhub and followed the instruction there, and this also failed. Out of frustration, I downloaded Moose 6.0 and thought I'd start from Moose image instead. But then I noticed Moose's PetitParser package has ConfigurationOfPetitParser from version TudorGirba.77 and the instruction I followed was trying to install it using version TudorGirba.80. Back to my Pharo 5 image, I unload/remove ConfigurationOfPetitParser and load version TudorGirba.77. And this works! But this way to solve PetitParser installation problem seems wrong. I figure if this could very well happen with other packages too. What is the right way to find package version that works with my image/pharo version? Or is this an issue with PetitParser package itself and should I ask/report this to Moose team? -- Andreas Sunardi