Bad argument (Array should be CvMat or IplImage) in unknown function
when i run the code it gives this error :OpenCV Error: Bad argument (Array should be CvMat or IplImage) in unknown function, file ......\src\opencv\modules\core\src\array.cpp, line 1238 Exception in thread "main" java.lang.RuntimeException: ......\src\opencv\modules\core\src\array.cpp:1238: error: (-5) Array should be CvMat or IplImage
at com.googlecode.javacv.cpp.opencv_core.cvGetSize(Native Method)
what is the sollution for this error?and i am trying to use javacv