ardupilot_gazebo 初次運行

Unable to download model[model://iris_with_ardupilot]

https://ardupilot.org/dev/docs/using-gazebo-simulator-with-sitl.html#using-gazebo-simulator-with-sitl

今天跑了這頁。

git clone https://github.com/khancyr/ardupilot_gazebo
   cd ardupilot_gazebo/
   git checkout gazebo7   (因爲我的環境是kinetic gazebo7，切換到gazebo7分支)
   git branch
   mkdir build
   cd build/
   cmake ..

第18行報錯。果斷刪除CMakeLists.txt 這幾行。
   gedit ../CMakeLists.txt 
   cmake ..
   make -j4
   sudo make install
   gazebo --verbose worlds/iris_arducopter_runway.world
 又報錯

Unable to download model[model://iris_with_ardupilot]
將源碼中的模型拷貝
   cd models/
   cp -rf iris* ~/.gazebo/models/
   cat /usr/share/gazebo/setup.sh