I do not see this problem in current zesty. You have to hint the installation with 'apt install ubuntu-touch webbrowser-app qml-module- ubuntu-components-gles', but there is a consistent solution for installability, and proposed-migration sees it without problem now.
** Changed in: ubuntu-touch-meta (Ubuntu) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-touch-meta in Ubuntu. https://bugs.launchpad.net/bugs/1619468 Title: Uninstallable ubuntu-touch-meta Status in ubuntu-touch-meta package in Ubuntu: Fix Released Status in ubuntu-touch-meta source package in Yakkety: In Progress Bug description: ubuntu-touch -> depends qml-module-ubuntu-components-gles on amd64 ubuntu-touch -> depends ubuntu-sdk-libs -> depends qml-module-ubuntu- components on amd64 the -gles and non-gles conflict resulting in ubuntu-meta uninstallable This is critical and prevents migration of many packages. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-touch-meta/+bug/1619468/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp