FaceDetection的OpenCV示例未运行

Question

I'm using OpenCV for Android. The default example mentioned on the OpenCV website does not run. console says... { 22:16:40 ** Auto Build of configuration Default for project OpenCV Sample - face-detection ** "\\ndk-build.cmd" Cannot run program "\\ndk-build.cmd" (in directory "C:\\Users\\Parth Sane\\workspace\\OpenCV Sample - face-detection"): CreateProcess error=2, The system cannot find the file specified

Error: Program "\\ndk-build.cmd" not found in PATH PATH=[C:/Program Files/Java/jdk1.7.0_07/bin/../jre/bin/server;C:/Program Files/Java/jdk1.7.0_07/bin/../jre/bin;C:/Program Files/Java/jdk1.7.0_07/bin/../jre/lib/amd64;C:\\Program Files (x86)\\AMD APP\\bin\\x86_64;C:\\Program Files (x86)\\AMD APP\\bin\\x86;C:\\Program Files\\Java\\jdk1.7.0_07\\bin;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;D:\\WinSCP\\;C:\\Program Files (x86)\\FAHClient;C:\\Users\\Parth Sane\\Desktop\\eclipse;]

22:16:40 Build Finished (took 410ms) }

The Mixed processing example gives similar a similar error...

Help!! Other samples run well...

Answer 1

Go to your OpenCV Sample face detection project in Eclipse, go to Project Properties, and then open "C/C++ Build" tab on the left-hand-side list. There you'll see a default builder configuration. It will be pointing to:

${NDKROOT}/ndk-build.cmd 

You have to either change this entry right there to point to where your ndk-build script is, or define NDKROOT environmental variable pointing to the root of your Android NDK install.