Sometimes it happens, that the maintenance tool of Qt is running and running and nothing is happening. It stucks at 99% and I waited hours of hours. In my case the following helped me to overcome this:
- Open Windows Explorer and enable the following option: show hidden files and folders
- Be sure that the maintenance tool is not running in the background (TaskManager)
- Now clear the following folder (it should contain ‘remoterepo-*’ – folders)
- Finished. Now open the Qt Maintenance tool and try again to update or modify your packages.