This bug was fixed in the package unity-tweak-tool - 0.0.7ubuntu3
--------------- unity-tweak-tool (0.0.7ubuntu3) artful; urgency=medium
* Drop unity-webapps-common, which is being removed from artful. LP: #1712874.
-- Steve Langasek <email address hidden> Thu, 24 Aug 2017 11:29:43 -0700
This bug was fixed in the package unity-tweak-tool - 0.0.7ubuntu3
---------------
unity-tweak-tool (0.0.7ubuntu3) artful; urgency=medium
* Drop unity-webapps- common, which is being removed from artful.
LP: #1712874.
-- Steve Langasek <email address hidden> Thu, 24 Aug 2017 11:29:43 -0700