启动快照时如何修复失败的 gtk 模块？

Question

启动多个快照时，我在终端中看到以下消息：

Gtk-Message: Failed to load module "overlay-scrollbar" 
Gtk-Message: Failed to load module "gail" 
Gtk-Message: Failed to load module "atk-bridge" 
Gtk-Message: Failed to load module "unity-gtk-module"
Gtk-Message: Failed to load module "canberra-gtk-module"

如何修复这些模块的加载？

我现在正在查看的特定快照是 keepassx-elopio。要安装并启动它：

$ sudo snap install keepassx-elopio
$ keepassx-elopio.keepassx

这是 snapcraft.yaml：https : //github.com/ubuntu/snappy-playpen/blob/master/keepassx/snapcraft.yaml