Anyone know the error :Could not find OpenCV Library - 2.4.8.apk! Please help me! In My project I write a piece of code like this :Mat imageroiB(block,block,CV_8UC1),it will appear a red break line under the word "Mat". I could not find the "CV_8UC1" in the options when I use the "Alt+/". The console: [2014-05-19 21:53:35 - OpenCV_Test03] Android Launch! [2014-05-19 21:53:35 - OpenCV_Test03] adb is running normally. [2014-05-19 21:53:35 - OpenCV_Test03] Performing com.example.opencv_test03.MainActivity activity launch [2014-05-19 21:53:36 - OpenCV_Test03] Application already deployed. No need to reinstall. [2014-05-19 21:53:36 - OpenCV Library - 2.4.8] Could not find OpenCV Library - 2.4.8.apk! [2014-05-19 21:53:36 - OpenCV_Test03] Starting activity com.example.opencv_test03.MainActivity on device 0123456789ABCDEF [2014-05-19 21:53:37 - OpenCV_Test03] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.opencv_test03/.MainActivity } [2014-05-19 21:53:37 - OpenCV_Test03] Attempting to connect debugger to 'com.example.opencv_test03' on port 8600