Just updated to the current trunk where I presume virtual tree view has been added. Starting lazarus (trunk from a few days ago) gives an error message about it not being found, and creates a dummy package. Trying to rebuild lazarus then fails as virtualtreeview is absent. I didn't think I needed it, so I try uninstalling it (double click on the package in the package graph and select uninstall) but it prompts to save a file, which seems very counter-intuitive - I don't want it, so why should I save it?

(Allowing the save to proceed and then building again reveals that the package is required by the package manager, and opening the virtual tree view package in the components directory allows the build to proceed.)

Colin