I still can't find inkscape-common in that website. Also, in that website it just links to the official package that is in the repository that you could already grab with a simple `apt install inkscape`, so I don't understand what are you doing…
Anyhow, installing packages from unofficial sources is not supported and clearly I won't give support in this bug tracker; you might try in some user support forum. That said, I reckon you should just `apt purge inkscape-common && apt install inkscape` and it should just work, provided you don't have some third party repository that might mess with it. ** Changed in: inkscape (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to inkscape in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/1874603 Title: package inkscape (not installed) failed to install/upgrade: trying to overwrite '/usr/share/application-registry/inkscape.applications', which is also in package inkscape-common 0.42-0.1 Status in inkscape package in Ubuntu: Invalid Bug description: Problem occurred upon installation. Application will not run. Application does not appear in Apps Menu. No further info. ProblemType: Package DistroRelease: Ubuntu 20.04 Package: inkscape (not installed) ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip Date: Thu Apr 23 22:48:23 2020 ErrorMessage: trying to overwrite '/usr/share/application-registry/inkscape.applications', which is also in package inkscape-common 0.42-0.1 InstallationDate: Installed on 2020-04-24 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4 RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.2 SourcePackage: inkscape Title: package inkscape (not installed) failed to install/upgrade: trying to overwrite '/usr/share/application-registry/inkscape.applications', which is also in package inkscape-common 0.42-0.1 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/inkscape/+bug/1874603/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp