Ubuntu Qt arm-linux-androideabi-gcc: Command not found

:-1: error: /opt/Qt/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-g++: Command not found

更换新pc，重新安装了Ubuntu12.04,Qt5.1,编译shanbaydict过程，出现错误，这是由于You are missing the OpenGL include files. Install the mesa-common-dev package，
../../Qt5.1.0/5.1.0/gcc_64/include/QtGui/qopengl.h:110:21: fatal error: GL/gl.h: No such file or directory
执行
sudo apt-get install mesa-common-dev
编译出现如下错误提示：
/usr/bin/ld: cannot find -lGL
执行下面命令解决：
sudo apt-get install libgl1-mesa-dev libglu1-mesa-dev

行如下代码一次性解决所有依赖：sudo apt-get install libgtk2.0-0:i386