Created attachment 916080 [details] Use itk package name lowercase everywhere Description of problem: Both package names itk and Itk fails in a require. itk version 4 package name is now all lowercase, but the conversion is incomplete. Version-Release number of selected component (if applicable): 4.0.0-2 How reproducible: Always. Steps to Reproduce: 1. Apply the path patch from BZ #1105506 2. use wish 3. try "package require itk" ---> fails 4. restart wish 5. try "package require Itk" ---> fail too Additional info: An old name has not be translated: see patch.