ubuntu 上用 snap 安装 dekko 后启动不了 dekko。有解吗？？

根据这个方法成功安装 dekko http://www.omgubuntu.co.uk/2017/01/install-dekko-ubuntu-email-app-snap

之后启动失败。报错信息如下： QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. [Dekko] Message server not running attempting to start [Dekko] Message server started successfully \o/ Creating instance Loading plugins.... Looking for library plugins Looking for dekko spec plugins +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/contacts/default-abook/default-abook.dekko-plugin" Registered: "Dekko::AddressBook::Provider" Path: "/snap/dekko/65/usr/bin/plugins/contacts/default-abook" +-------------------------------------+ +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/ui/dekko-mail-ui.dekko-plugin" Registered: "Dekko::Mail" Path: "/snap/dekko/65/usr/bin/plugins/ui" +-------------------------------------+ +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/ui/views/composer/default-composer-ui.dekko-plugin" Registered: "Dekko::Mail::Composer::UI" Path: "/snap/dekko/65/usr/bin/plugins/ui/views/composer" +-------------------------------------+ +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/ui/views/composer/default-composer.dekko-plugin" Registered: "Dekko::Mail::Composer" Path: "/snap/dekko/65/usr/bin/plugins/ui/views/composer" +-------------------------------------+ +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/ui/views/settings/default-settings.dekko-plugin" Registered: "Dekko::Mail::Settings" Path: "/snap/dekko/65/usr/bin/plugins/ui/views/settings" +-------------------------------------+ +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/ui/views/stages/dekko-main-stage.dekko-plugin" Registered: "Dekko::Stage::Main" Path: "/snap/dekko/65/usr/bin/plugins/ui/views/stages" +-------------------------------------+ +-------------------------------------+ PluginReady: "/snap/dekko/65/usr/bin/plugins/ui/views/stages/dekko-settings-stage.dekko-plugin" Registered: "Dekko::Stage::Settings" Path: "/snap/dekko/65/usr/bin/plugins/ui/views/stages" +-------------------------------------+ Getting all enabled plugins Plugin enabled: "ubuntu-mail-ui" Loading first enabled plugin Incubating plugin void QCopClient::connectToServer() QLocalSocket::ConnectionRefusedError "QLocalSocket::connectToServer: Connection refused" Messaging : opening database Cannot mix incompatible Qt library (version 0x50602) with this library (version 0x50601) 已放弃