| 启动QtCreator提示:dbus_connection_can_send_type的错误, QString::arg: Argument missing: 无法解析dbus_connection_can_send_type中的符号“dbus_connection_can_send_type”: dbus-1, (/lib/libdbus-1.so.3: undefined symbol: dbus_connection_can_send_type)  解决办法: 更新dbus版本来解决.. 首先去https://www.freedesktop.org/wiki/Software/dbus/#index4h1 下载dbus的最新版本(1.10) 解压后,进入 文件夹:dbus-1.10.0运行如下命令:  
 ./configure 
make
make install   {注意: 在执行./config时会出现如下错误:  
 checking for XML_ParserCreate_MM in -lexpat... no
configure: error: Explicitly requested expat but expat not found        说明D-Bus daemon需要expat XML parser 库,所以这里需要先编译expat库: 从https://sourceforge.net/projects/expat/?source=typ_redirect下载expat-2.1.1 解压后,进入 文件夹运行如下命令:    
 ./configure 
make
make install     } 安装完成,更新连接文件 把 /usr/local/lib/libdubs-1.so.3.14.3 复制到 /lib  (我的是32位) 在 /lib下 删除libdbus-1.so和libdbus-1.so.3 两个文件,并为libdubs-1.so.3.14.3创建连接: ln -s libdubs-1.so.3.14.3 libdbus-1.so ln -s libdubs-1.so.3.14.3 libdbus-1.so.3 再次启动QtCreator,显示错误: process 14950: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/etc/machine-id": 没有那个文件或目录See the manual page for dbus-uuidgen to correct this issue.
 D-Bus not built with -rdynamic so unable to print a bactrace
 已放弃(core dumped)
 缺少machine-id文件,需要给它定义一个id,使用dbus-uuidgen创建id文件  
 dbus-uuidgen >/usr/var/lib/dbus/machine-id
cp /usr/var/lib/dbus/machine-id /etc/  或者  
 dbus-uuidgen >/etc/machine-id    该问题解决,启动QtCreator,没有任何错误提示   参考:http://www.th7.cn/system/lin/201403/50571.shtml |