QString::arg: Argument missing: 无法解析kde_plugin_version中的符号“kde_plugin_version”:/usr/lib/qt/plugins/krdc/libkrdc_vncplugin.so, (/usr/lib/qt/plugins/krdc/libkrdc_vncplugin.so: undefined symbol: kde_plugin_version) QString::arg: Argument missing: 无法解析kde_plugin_version中的符号“kde_plugin_version”:/usr/lib/qt/plugins/krdc/libkrdc_rdpplugin.so, (/usr/lib/qt/plugins/krdc/libkrdc_rdpplugin.so: undefined symbol: kde_plugin_version) QString::arg: Argument missing: 无法解析kde_plugin_version中的符号“kde_plugin_version”:/usr/lib/qt/plugins/krdc/libkrdc_testplugin.so, (/usr/lib/qt/plugins/krdc/libkrdc_testplugin.so: undefined symbol: kde_plugin_version)
This is most probably a packaging / distribution issue. Please report it to Archlinux.