qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.

qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. 请问这个问题如何解决呢

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这个问题是由于系统中没有安装适当的 Qt 平台插件导致的。要解决此问题,请尝试以下步骤:

  • 确保在系统中安装了适当的 Qt 库。 对于大多数 Linux 系统,您可以使用包管理器安装 Qt。 例如,在 Debian 和 Ubuntu 上,可以使用以下命令安装 Qt 5:
sudo apt-get install qt5-default
  • 如果第一步无法解决问题,请尝试在环境变量中指定 QT_QPA_PLATFORM_PLUGIN_PATH。 例如,如果 Qt 库安装在 /usr/local/qt5,可以使用以下命令:
export QT_QPA_PLATFORM_PLUGIN_PATH=/usr/local/qt5/plugins/platforms