编译osdk的示例程序，cmake出现报错，
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
/home/ubuntu/Onboard-SDK-master/osdk-core/LIBUSB_1_INCLUDE_DIR
   used as include directory in directory /home/ubuntu/Onboard-SDK-master/osdk-core
LIBUSB_1_INCLUDE_DIR
找不到LIBUSB_1_INCLUDE_DIR，源文件下面也没有这个目录，有人知道怎么回事吗？

请教下这个问题怎么解决呢
运行osdk的例程：camera_stream_poll_sample 出现以下信息
[ 71597. 484]STATUS/1 @ ~AdvancedSensing, L186: Destroy task for M300'S liveview !
Segmentation fault (core dumped )

这个问题有人遇到过吗，怎么解决

编译osdk的示例程序，cmake出现报错，
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
/home/ubuntu/Onboard-SDK-master/osdk-core/LIBUSB_1_INCLUDE_DIR
   used as include directory in directory /home/ubuntu/Onboard-SDK-master/osdk-core
LIBUSB_1_INCLUDE_DIR
找不到LIBUSB_1_INCLUDE_DIR，源文件下面也没有这个目录，有人知道怎么回事吗？