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Atai Ambus
Asked: 2020-08-05 20:44:37 +0800 CST

启动某些应用程序时有关图标主题的无效上下文警告

  • 772

当我从终端启动 okular 时，我收到一堆关于某些图标主题文件夹的“Invalid Context”警告（都来自 Yaru，这是 Gnome Tweaks 中设置的主题，以及 Adwaita）。编辑要排除的命名目录的 index.theme 会删除警告，但随后会破坏一些 UI（顶部栏设置中的小箭头变成十字形禁止图标），我想这是可以预料的。

谷歌搜索显示，很多人在各种应用程序上都遇到过这种情况，但我发现的解决方案并不适用（特定于应用程序或 Arch）。

Okular 似乎工作正常。我最近从 19.10 升级到 20.4，但在此之前也存在错误。

有谁知道我为什么会收到这些警告或如何解决它们？

完整的命令行输出：

Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/16x16/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/22x22/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/24x24/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/32x32/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/48x48/legacy/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Yaru/256x256@2x/apps/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Yaru/256x256@2x/mimetypes/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Yaru/scalable/mimetypes/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/8x8/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/16x16/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/16x16/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/22x22/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/24x24/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/24x24/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/32x32/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/32x32/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/48x48/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/48x48/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/64x64/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/64x64/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/96x96/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/96x96/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/256x256/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/512x512/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/scalable/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/scalable/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/16x16/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/22x22/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/24x24/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/32x32/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Yaru/48x48/legacy/"
Invalid Context= "Apps" line for icon theme:  "/usr/share/icons/Yaru/256x256@2x/apps/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Yaru/256x256@2x/mimetypes/"
Invalid Context= "Mimetypes" line for icon theme:  "/usr/share/icons/Yaru/scalable/mimetypes/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/8x8/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/16x16/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/16x16/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/22x22/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/24x24/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/24x24/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/32x32/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/32x32/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/48x48/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/48x48/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/64x64/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/64x64/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/96x96/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/96x96/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/256x256/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/512x512/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/scalable/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/scalable/ui/"
gnome themes icons okular

3 个回答

  1. Best Answer

    似乎（如here和here所述）某些图标主题（在您的情况下是Yaru和Adwaita）没有指定所有上下文。
    我发现使用 Okular 摆脱这些警告消息的最简单解决方案是使用另一个图标主题，例如，在 Ubuntu 中使用氧气图标主题。
    从终端安装oxygen-icon-theme：

    sudo apt update
sudo apt-get install oxygen-icon-theme

    然后，转到 Tweaks 并在 Appearance 菜单中将 Icons 选项更改为 Oxygen。

    • 1

  2. 手动删除这个烦人的列表：

    使用方便的文本编辑器打开/usr/share/icons/Adwaita/index.theme并用“Action”查找/替换“Legacy”和“UI”。

    当心那些是区分大小写的。由于大小写错误（Stock vs stock），mono-dark 也有类似的错误 Invalid Context= "stock" line for icon theme: "/usr/share/icons/ubuntu-mono-dark/stock/22/"

    Legacy 和 UI 不是有效的上下文，但规范只提到了 4 个，而还有几个在使用中。（谁能提供一份清单？）

    我没有注意到任何不利影响。

    • 0

  3. 对于一种简单的解决方法，可以重定向输出错误消息。要使其永久化，请为 okular 命令定义一个别名。例如，使用 bash：

    alias okular='okular 2> /dev/null'
    • 0

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