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2012-12-30 15:11:21 -0500 asked a question how to uninstalled my nvidia graphics?

Hi dear all, I am running rosrun rviz rviz, but it indicates the following error:

rviz: /tmp/buildd/ros-fuerte-visualization-1.8.13/debian/ros-fuerte-visualization/opt/ros/fuerte/stacks/visualization/rviz/src/rviz/ogre_helpers/render_system.cpp:263: Ogre::RenderWindow* rviz::RenderSystem::makeRenderWindow(intptr_t, unsigned int, unsigned int): Assertion `false' failed.

someone says that by uninstalling the nvidia graphics can fix this problem, but I don't know how to uninstall, who can tell me?

2012-12-27 18:12:13 -0500 asked a question Determining if the Q_WS_QWS exist failed with the following output:

when running rosmake, the error apear:

Determining if the Q_WS_WIN exist failed with the following output: Change Dir: /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/make "cmTryCompileExec/fast" make[2]: 正在进入目录 /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTryCompileExec.dir/build.make CMakeFiles/cmTryCompileExec.dir/build make[3]: 正在进入目录/home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp' /usr/bin/cmake -E cmake_progress_report /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp/CMakeFiles 1 Building CXX object CMakeFiles/cmTryCompileExec.dir/CheckSymbolExists.cxx.o /usr/bin/c++ -I/usr/include/qt4 -o CMakeFiles/cmTryCompileExec.dir/CheckSymbolExists.cxx.o -c /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: 在函数‘int main()’中: /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:8:25: 错误: ‘Q_WS_WIN’在此作用域中尚未声明 make[3]: * [CMakeFiles/cmTryCompileExec.dir/CheckSymbolExists.cxx.o] 错误 1 make[3]:正在离开目录 /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp' make[2]: *** [cmTryCompileExec/fast] 错误 2 make[2]:正在离开目录/home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp'

File /home/huang/fuerte_workspace/tum_ardrone/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */

include <qtcore qglobal.h="">

void cmakeRequireSymbol(int dummy,...){(void)dummy;} int main() {

ifndef Q_WS_WIN

cmakeRequireSymbol(0,&Q_WS_WIN);

endif

return 0;

}

who can tell me what is the prblem?