原博文鏈接在我的官方網站，網址是：http://www.aobosir.com/blog/2017/02/11/solve-openni-XnOS-No-such-file-or-directory/
參考網站：ofxOpenNI：XnOpenNI.h：沒有這樣的文件或目錄
遇到的問題
XnOS.h: No such file or directory
解決辦法
查找openni相關的軟件包。
aobo@aobo-tp:~$ apt-cache search openni
libopenni-dev - headers for OpenNI 'Natural Interaction' frameworks
libopenni-java - Java framework for sensor-based 'Natural Interaction'
libopenni-sensor-pointclouds-dev - headers for Kinect sensor modules for the OpenNI framework
libopenni-sensor-pointclouds0 - Microsoft Kinect sensor modules for the OpenNI framework
libopenni-sensor-primesense-dev - headers for working with PrimeSense sensor OpenNI modules
libopenni-sensor-primesense0 - PrimeSense sensor modules for the OpenNI framework
libopenni0 - framework for sensor-based 'Natural Interaction'
libopenni2-0 - framework for sensor-based 'Natural Interaction'
libopenni2-dev - headers for OpenNI 'Natural Interaction' frameworks
openni-doc - developer documentation for OpenNI frameworks
openni-utils - debug and test utilities OpenNI framework
openni2-doc - developer documentation for OpenNI frameworks
openni2-utils - debug and test utilities OpenNI2 framework
primesense-nite-nonfree - OpenNI module providing gesture and skeleton tracking
ros-kinetic-depth-image-proc - Contains nodelets for processing depth images such as those produced by OpenNI camera.
ros-kinetic-ecto-openni - Ecto bindings for the openni sensor.
ros-kinetic-freenect-camera - A libfreenect-based ROS driver for the Microsoft Kinect.
ros-kinetic-freenect-launch - Launch files for freenect_camera to produce rectified, registered or disparity images.
ros-kinetic-openni-camera - A ROS driver for OpenNI depth (+ RGB) cameras.
ros-kinetic-openni-launch - Launch files to open an OpenNI device and load all nodelets to convert raw depth/RGB/IR streams to depth images, disparity images, and (registered) point clouds.
ros-kinetic-openni2-camera - Drivers for the Asus Xtion and Primesense Devices.
ros-kinetic-openni2-launch - Launch files to start the openni2_camera drivers using rgbd_launch.安裝 libopenni-dev ：
aobo@aobo-tp:~$ sudo apt-get install libopenni-dev
[sudo] password for aobo:
Reading package lists... Done
Building dependency tree
Reading state information... Done
libopenni-dev is already the newest version (1.5.4.0-14).
libopenni-dev set to manually installed.
The following packages were automatically installed and are no longer required:
linux-headers-4.4.0-36 linux-headers-4.4.0-36-generic linux-headers-4.4.0-57
linux-headers-4.4.0-57-generic linux-image-4.4.0-36-generic
linux-image-4.4.0-57-generic linux-image-extra-4.4.0-36-generic
linux-image-extra-4.4.0-57-generic
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 140 not upgraded.
aobo@aobo-tp:~$ 檢測安裝路徑：
aobo@aobo-tp:~$ dpkg -L libopenni-dev
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libopenni-dev
/usr/share/doc/libopenni-dev/copyright
/usr/include
/usr/include/ni
/usr/include/ni/XnEnumerationErrors.h
/usr/include/ni/Linux-Powerpc
/usr/include/ni/Linux-Powerpc/XnPlatformLinux-Powerpc.h
/usr/include/ni/XnProfiling.h
/usr/include/ni/XnCppWrapper.h
/usr/include/ni/XnStack.h
/usr/include/ni/XnModuleInterface.h
/usr/include/ni/XnDump.h
/usr/include/ni/XnGeneralBuffer.h
/usr/include/ni/XnInternalDefs.h
/usr/include/ni/XnOpenNI.h
/usr/include/ni/XnStringsHashT.h
/usr/include/ni/XnOS.h
/usr/include/ni/XnMacros.h
/usr/include/ni/XnModuleCppInterface.h
/usr/include/ni/XnBaseNode.h
/usr/include/ni/XnDataTypes.h
/usr/include/ni/XnFPSCalculator.h
/usr/include/ni/XnCodecIDs.h
/usr/include/ni/XnPropNames.h
/usr/include/ni/XnUtils.h
/usr/include/ni/XnOSStrings.h
/usr/include/ni/XnUSB.h
/usr/include/ni/XnCyclicQueueT.h
/usr/include/ni/XnLicensing.h
/usr/include/ni/XnQueue.h
/usr/include/ni/XnArray.h
/usr/include/ni/XnStackT.h
/usr/include/ni/XnModuleCppRegistratration.h
/usr/include/ni/XnCallback.h
/usr/include/ni/XnDerivedCast.h
/usr/include/ni/XnDumpWriters.h
/usr/include/ni/XnHash.h
/usr/include/ni/XnOSMemory.h
/usr/include/ni/XnModuleCFunctions.h
/usr/include/ni/XnStatusCodes.h
/usr/include/ni/XnPrdNodeInfoList.h
/usr/include/ni/Linux-Mips
/usr/include/ni/Linux-Mips/XnPlatformLinux-Mips.h
/usr/include/ni/XnStringsHash.h
/usr/include/ni/XnLog.h
/usr/include/ni/XnBitSet.h
/usr/include/ni/XnTypes.h
/usr/include/ni/XnThreadSafeQueue.h
/usr/include/ni/XnStatusRegister.h
/usr/include/ni/XnVersion.h
/usr/include/ni/XnAlgorithms.h
/usr/include/ni/XnPlatform.h
/usr/include/ni/XnEventT.h
/usr/include/ni/Linux-AArch64
/usr/include/ni/Linux-AArch64/XnPlatformLinux-AArch64.h
/usr/include/ni/Linux-x86
/usr/include/ni/Linux-x86/XnOSLinux-x86.h
/usr/include/ni/Linux-x86/XnPlatformLinux-x86.h
/usr/include/ni/XnPrdNode.h
/usr/include/ni/MacOSX
/usr/include/ni/MacOSX/XnPlatformMacOSX.h
/usr/include/ni/XnEvent.h
/usr/include/ni/IXnNodeAllocator.h
/usr/include/ni/XnListT.h
/usr/include/ni/XnContext.h
/usr/include/ni/XnPrdNodeInfo.h
/usr/include/ni/XnOSCpp.h
/usr/include/ni/XnCyclicStackT.h
/usr/include/ni/XnQueueT.h
/usr/include/ni/XnList.h
/usr/include/ni/XnStatus.h
/usr/include/ni/XnNodeAllocator.h
/usr/include/ni/XnLogTypes.h
/usr/include/ni/Linux-Arm
/usr/include/ni/Linux-Arm/XnPlatformLinux-Arm.h
/usr/include/ni/XnQueries.h
/usr/include/ni/XnLogWriterBase.h
/usr/include/ni/XnNode.h
/usr/include/ni/XnScheduler.h
/usr/include/ni/XnUSBDevice.h
/usr/include/ni/XnHashT.h
/usr/lib
/usr/lib/pkgconfig
/usr/lib/pkgconfig/libopenni.pc
/usr/share/doc/libopenni-dev/changelog.Debian.gz
/usr/lib/libnimCodecs.so
/usr/lib/libSample-NiSampleModule.so
/usr/lib/libnimRecorder.so
/usr/lib/libnimMockNodes.so
/usr/lib/libOpenNI.so
/usr/lib/libOpenNI.jni.so
aobo@aobo-tp:~$
看一下include路徑裏面的openni文件：
aobo@aobo-tp:~$ cd /usr/include/ni/
aobo@aobo-tp:/usr/include/ni$ ls
IXnNodeAllocator.h XnCodecIDs.h XnFPSCalculator.h XnModuleCFunctions.h XnPrdNode.h XnStatus.h
Linux-AArch64 XnContext.h XnGeneralBuffer.h XnModuleCppInterface.h XnPrdNodeInfo.h XnStatusRegister.h
Linux-Arm XnCppWrapper.h XnHash.h XnModuleCppRegistratration.h XnPrdNodeInfoList.h XnStringsHash.h
Linux-Mips XnCyclicQueueT.h XnHashT.h XnModuleInterface.h XnProfiling.h XnStringsHashT.h
Linux-Powerpc XnCyclicStackT.h XnInternalDefs.h XnNodeAllocator.h XnPropNames.h XnThreadSafeQueue.h
Linux-x86 XnDataTypes.h XnLicensing.h XnNode.h XnQueries.h XnTypes.h
MacOSX XnDerivedCast.h XnList.h XnOpenNI.h XnQueue.h XnUSBDevice.h
XnAlgorithms.h XnDump.h XnListT.h XnOSCpp.h XnQueueT.h XnUSB.h
XnArray.h XnDumpWriters.h XnLog.h XnOS.h XnScheduler.h XnUtils.h
XnBaseNode.h XnEnumerationErrors.h XnLogTypes.h XnOSMemory.h XnStack.h XnVersion.h
XnBitSet.h XnEvent.h XnLogWriterBase.h XnOSStrings.h XnStackT.h
XnCallback.h XnEventT.h XnMacros.h XnPlatform.h XnStatusCodes.h
aobo@aobo-tp:/usr/include/ni$
我們現在查看一下openni安裝的頭文件和鏈接文件：
下面這兩個命令是檢測不到openni的頭文件路徑的。
aobo@aobo-tp:/usr/include/ni$ pkg-config --cflags openni
Package openni was not found in the pkg-config search path.
Perhaps you should add the directory containing `openni.pc'
to the PKG_CONFIG_PATH environment variable
No package 'openni' found
aobo@aobo-tp:/usr/include/ni$ pkg-config --cflags ni
Package ni was not found in the pkg-config search path.
Perhaps you should add the directory containing `ni.pc'
to the PKG_CONFIG_PATH environment variable
No package 'ni' found
aobo@aobo-tp:/usr/include/ni$ 正確的命令：
aobo@aobo-tp:~$ pkg-config --cflags libopenni
-I/usr/include/ni
aobo@aobo-tp:~$ pkg-config --libs libopenni
-lOpenNI
aobo@aobo-tp:~$ 我當前的項目是在QT中的，解決辦法就是：
在 .pro 文件裏面，添加openni的頭文件路徑和鏈接文件路徑。
INCLUDEPATH += /usr/include/ni
LIBS += -L/usr/lib -lOpenNI更多精彩的博文，請訪問：http://www.aobosir.com/
