Cmake Error遇到的问题及解决

1. qt_build
   在网上看了好多解决办法，好多说添加路径的，但是都没有解决我的问题，看到有教程说在src路径下 catkin_create_qt_pkg testgui，也报错了，
   需要先install，

   $ sudo apt-get install ros-indigo-qt-ros
   之后没有qt_build那个报错了，但有了新的报错，见2
   之前的报错如下：
   CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
   Could not find a package configuration file provided by “qt_build” with any
   of the following names:

        qt_buildConfig.cmake
        qt_build-config.cmake
    
      Add the installation prefix of "qt_build" to CMAKE_PREFIX_PATH or set
      "qt_build_DIR" to a directory containing one of the above files.  If
      "qt_build" provides a separate development package or SDK, be sure it has
      been installed.
    Call Stack (most recent call first):
      _OLD_ROBOTIS-MANIPULATOR-master/robotis_manipulator_h_gui/CMakeLists.txt:13 (find_package)
    
    
    -- Configuring incomplete, errors occurred!
    See also "/home/robot/catkin_ws/build/CMakeFiles/CMakeOutput.log".
    See also "/home/robot/catkin_ws/build/CMakeFiles/CMakeError.log".
    make: *** [cmake_check_build_system] 错误 1
    Invoking "make cmake_check_build_system" failed
   

新的报错：robotics_controller_megs

CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by
  "robotis_controller_msgs" with any of the following names:

    robotis_controller_msgsConfig.cmake
    robotis_controller_msgs-config.cmake

  Add the installation prefix of "robotis_controller_msgs" to
  CMAKE_PREFIX_PATH or set "robotis_controller_msgs_DIR" to a directory
  containing one of the above files.  If "robotis_controller_msgs" provides a
  separate development package or SDK, be sure it has been installed.
Call Stack (most recent call first):
  _OLD_ROBOTIS-MANIPULATOR-master/robotis_manipulator_h_calc/CMakeLists.txt:8 (find_package)

后来发现是我之前把一个别的工程文件复制到src里面了，但是这个工程本身有一些不完整，把这个删掉就不报错啦。

总结：src里面不要复制一些乱七八糟的文件进来，否则在camke的时候会报一堆乱七八糟的错误