因此，我正在尝试将旧的buildroot系统从2018.08.x升级到最新版本。问题在于，从qq5virtualkeyboard 5.12.2安装时，从2019.2.x升级到2019.5.x或2019.8.x会产生错误。
注意：在2019.2.x版之后，Qt套件从5.11更新到5.12。
我已经检查了软件包install.mk，但相关行中没有更改：
ifdef QT5VIRTUALKEYBOARD_3RDPARTY_PARTS
define QT5VIRTUALKEYBOARD_INSTALL_TARGET_3RDPARTY_PARTS
cp -dpfr $(STAGING_DIR)/usr/qtvirtualkeyboard $(TARGET_DIR)/usr
endef
endif
并且我已经测试过清洁qt5virtualkeyboard->language layouts和qt5virtualkeyboard->handwriting可以解决问题。
以下是修订版2019.5.x的make输出：
qt5virtualkeyboard 5.12.2 Installing to target
mkdir -p /home/fg/work/acto/buildroot/output/target/usr/lib/qt/plugins/platforminputcontexts
cp -dpfr /home/fg/work/acto/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/qt/plugins/platforminputcontexts/libqtvirtualkeyboardplugin.so /home/fg/work/acto/buildroot/output/target/usr/lib/qt/plugins/platforminputcontexts
cp -dpf /home/fg/work/acto/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/libQt5VirtualKeyboard*.so.* /home/fg/work/acto/buildroot/output/target/usr/lib
mkdir -p /home/fg/work/acto/buildroot/output/target/usr/qml/QtQuick
cp -dpfr /home/fg/work/acto/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/qml/QtQuick/VirtualKeyboard /home/fg/work/acto/buildroot/output/target/usr/qml/QtQuick/
cp -dpfr /home/fg/work/acto/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/qtvirtualkeyboard /home/fg/work/acto/buildroot/output/target/usr
cp: cannot stat '/home/fg/work/acto/buildroot/output/host/arm-buildroot-linux-gnueabihf/sysroot/usr/qtvirtualkeyboard': No such file or directory
package/pkg-generic.mk:331: recipe for target '/home/fg/work/acto/buildroot/output/build/qt5virtualkeyboard-5.12.2/.stamp_target_installed' failed
make: *** [/home/fg/work/acto/buildroot/output/build/qt5virtualkeyboard-5.12.2/.stamp_target_installed] Error 1
此刻，我禁用了虚拟键盘配置以在系统上运行。但我想更深入：我想了解在更新过程中是否出了问题，是否需要添加一些新的依赖项软件包，或者这可能是软件包安装错误。