Hi Tav, I can reproduce the issue on Ubuntu 16.04 base when trying to export to sk1 or plt. I don't have sk1libs installed (but sk1 aka python-sk1), and the libs are not available via package management. On their homepage[1], it says: "Note for Linux users: UniConvertor was refactored and some code portions were extracted in sk1libs package. So before UniConvertor installing you should install sk1libs. Another additional package is uniconvw. The package provides Gtk+ frontend for UniConvertor and therefore uniconvw installation is optional. Packages for Ubuntu have been builded by dpkg utility. They have correct dependencies and you can install these packages just by double-click. All required dependencies will be resolved by package manager automatically." It seems, though, as if the sk1libs package is not available via package management, while the uniconvertor version is 1.1.5, from official Ubuntu repos. Tried to compile sk1libs, but doesn't work out of the box, because I've only got lcms2.h (from littlecms2-dev) and not lcms.h (older littlecms not available via package management). Didn't test if the outdated Linux Mint deb package from sk1 homepage still works. Maren [1] https://sk1project.net/modules.php?name=Products&product=uniconvertor... Am 23.05.2017 um 14:30 schrieb Tavmjong Bah: