我在 Chromebook 上的 Crouton 中使用 Ubuntu 18.04，并尝试安装 Flatpak。安装过程中一切顺利，但我无法从 flathub 下载任何内容，而且每次我尝试使用 flathub 执行某些操作时，都会出现错误。
现在我尝试安装 Spotify 应用程序，它说
无法从 flathub 安装“com.spotify.Client”：尝试应用额外数据时：apply_extra 脚本失败，退出状态 256
我在互联网上没有找到任何关于此的信息。我用本教程安装 Flatpak 1.6.2（如果这是有用的信息）。
我能做些什么？
答案1
我做了什么让它在 19.10 上运行
$ sudo add-apt-repository ppa:alexlarsson/flatpak
$ sudo apt install flatpak
The following NEW packages will be installed:
flatpak libostree-1-1
sudo apt install gnome-software-plugin-flatpak
The following NEW packages will be installed:
gnome-software-plugin-flatpak libflatpak0
$ flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
Note that the directories
'/var/lib/flatpak/exports/share'
'/home/spacer/.local/share/flatpak/exports/share'
are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.
$ echo $XDG_DATA_DIRS
/usr/share/ubuntu-wayland:/usr/local/share:/usr/share:/var/lib/snapd/desktop
$ flatpak install flathub com.spotify.Client
Note that the directories
'/var/lib/flatpak/exports/share'
'/home/spacer/.local/share/flatpak/exports/share'
are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.
Looking for matches…
Required runtime for com.spotify.Client/x86_64/stable (runtime/org.freedesktop.Platform/x86_64/19.08) found in remote flathub
Do you want to install it? [Y/n]:
com.spotify.Client permissions:
ipc network pulseaudio x11
dri file access [1] dbus access [2] bus ownership [3]
tags [4]
[1] xdg-music:ro, xdg-pictures:ro
[2] org.freedesktop.Notifications, org.gnome.SessionManager,
ID Branch Op Remote Download
1. [✓] org.freedesktop.Platform.GL.default 19.08 i flathub 93,1 MB / 92,6 MB
2. [✓] org.freedesktop.Platform.Locale 19.08 i flathub 3,2 MB / 318,2 MB
3. [✓] org.freedesktop.Platform.VAAPI.Intel 19.08 i flathub 8,6 MB / 8,7 MB
4. [✗] org.freedesktop.Platform.openh264 19.08 i flathub 594,2 kB / 593,4 kB
5. [✓] org.gtk.Gtk3theme.Yaru-light 3.22 i flathub 153,5 kB / 207,6 kB
6. [✓] org.freedesktop.Platform 19.08 i flathub 244,3 MB / 238,1 MB
7. [✓] com.spotify.Client stable i flathub 135,7 MB / 131,9 MB
Warning: org.freedesktop.Platform.openh264 not installed
Installation complete.
$ flatpak install flathub org.freedesktop.Platform.openh264/x86_64/19.08
Note that the directories
'/var/lib/flatpak/exports/share'
'/home/spacer/.local/share/flatpak/exports/share'
are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.
Looking for matches…
ID Branch Op Remote Download
1. [✓] org.freedesktop.Platform.openh264 19.08 i flathub 593,6 kB / 593,4 kB
Installation complete.
$ flatpak run com.spotify.Client
Note that the directories
'/var/lib/flatpak/exports/share'
'/home/spacer/.local/share/flatpak/exports/share'
are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.
/app/extra/bin/spotify: /app/lib/libcurl-gnutls.so.4: no version information available (required by /app/extra/bin/spotify)
Gtk-Message: 19:58:38.385: Failed to load module "atk-bridge"
Gtk-Message: 19:58:38.423: Failed to load module "canberra-gtk-module"
/app/extra/share/spotify/spotify: /app/lib/libcurl-gnutls.so.4: no version information available (required by /app/extra/share/spotify/spotify)
/proc/self/exe: /app/lib/libcurl-gnutls.so.4: no version information available (required by /proc/self/exe)
/proc/self/exe: /app/lib/libcurl-gnutls.so.4: no version information available (required by /proc/self/exe)
Spitify 启动成功：
检查从$符号开始的命令是否已执行。
另外，您可以尝试创建新用户：
sudo adduser newuser && sudo usermod -aG sudo newuser
使用它登录并重试。