我正在尝试使用umake命令安装 Android Studio
sudo umake android android-studio
我收到以下错误：
Downloading and installing requirements
| ERROR: W:GPG error: http://download.opensuse.org/repositories/home:/olav-st/xUbuntu_16.04 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1BE1E8D7A2B5E9D5, W:The repository 'http://download.opensuse.org/repositories/home:/olav-st/xUbuntu_16.04 Release' is not signed., W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use., W:See apt-secure(8) manpage for repository creation and user configuration details., W:The repository 'http://ppa.launchpad.net/texlive-backports/ppa/ubuntu xenial Release' does not have a Release file., W:Data from …