References: https://www.hahwul.com/2018/08/install-kakaotalk-on-ubuntu-18.04.htmlhttps://www.playonlinux.com/en/topic-16540-MPSetup_wmp9_will_not_run.html Error message: Executing cd /home/username/.cache/winetricks/wmp9 Downloading https://download.microsoft.com/download/1/b/c/1bc0b1a3-c839-4b36-8f3c-19847ba09299/MPSetup.exe to /home/username/.cache/winetricks/wmp9 Executing cd /home/username/.cache ------------------------------------------------------ sha256sum mismatch! Rename /home/username/.cache/winetricks/wmp9/MPSetup.exe and try again. ------------------------------------------------------ Solution: Download...