大家好，我在尝试安装 VMware 时遇到了一些问题。我是 ubuntu 的新手，你能帮我吗？
E: The repository 'http://ppa.launchpad.net/ehoover/compholio/ubuntu artful Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
apt ×1