由于 snap mount 命名空间错误，Brave 浏览器无法启动

Question

从 snap 安装的 Brave 运行了好几个月。由于两天后单击启动器中的勇敢图标时它没有启动。当尝试从命令行运行 Brave 时，只是调用brave我收到以下警告，浏览器启动但没有我的所有配置文件数据（书签、配置、历史记录），并且它处于不安全的 --no-sandbox 模式。

main.go:224: cannot change mount namespace of snap "brave" according to change mount (/snap/gtk-common-themes/818/share/icons/Suru /snap/brave/44/data-dir/icons/Suru none bind,ro 0 0): cannot use "/snap/gtk-common-themes/818/share/icons/Suru" as bind-mount source: not a directory
Gtk-Message: Failed to load module "canberra-gtk-module"
Gtk-Message: Failed to load module "canberra-gtk-module"
Gkr-Message: secret service operation failed: An AppArmor policy prevents this sender from sending this message to this recipient;

看起来像 snap-AppArmor 集成问题。

Ubuntu 18.04.1 LTS。

snap version

snap    2.36.2
snapd   2.36.2
series  16
ubuntu  18.04
kernel  4.15.0-42-generic

apt policy apparmor

apparmor:
  Installed: 2.12-4ubuntu5.1

snap info brave

name:      brave
summary:   A browser with your interests at heart.
publisher: Brave Software (brave*)
contact:   https://community.brave.com/
license:   unset
description: |
  Browse faster by blocking ads and trackers that violate your privacy and
  cost you time and money.
commands:
  - brave
snap-id:      uE3hSmGE91m9MpbDEnUWi2vpeumH6gmv
tracking:     stable
refresh-date: today at 10:26 IST
channels:                              
  stable:    v0.56.12-5.dev (44) 160MB -
  candidate: ^                         
  beta:      ^                         
  edge:      ^                         
installed:   v0.56.12-5.dev (44) 160MB -

Answer 1

第二部分中的答案已过时，因为 Brave snap 包已停产。Brave 浏览器官方网站目前在 Ubuntu 中安装 Brave 浏览器的说明如下。打开终端并输入：

sudo apt install apt-transport-https curl
curl -s https://brave-browser-apt-release.s3.brave.com/brave-core.asc | sudo apt-key --keyring /etc/apt/trusted.gpg.d/brave-browser-release.gpg add -
echo "deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main" | sudo tee /etc/apt/sources.list.d/brave-browser-release.list
sudo apt update
sudo apt install brave-browser

Answer 2

这不是一个真正的解决方案，但至少它允许我在 Brave 中访问我的个人资料数据。

sudo snap revert brave

现在Brave可以正常启动了。