Hi all...

I am new to JNI and I've been surviving through error messages so far by searching solutions in the internet. But this time I can't solve the problem. Please help me....

error message:

			

			class JvFollowLineMain {
			

			public static void main(String[] args) {
			

			

			JvFollowLine jfl = new JvFollowLine();
			

			jfl.doFollowLine(args);
			

			}
			

			}
			

		

			

			class JvFollowLine {
			

			public native void doFollowLine(String[] args);
			

			

			static {
			

			System.loadLibrary("JvFollowLineImp");
			

			}
			

			}
			

		

			

			#include "JvFollowLine.h"
			

			

			#if !MONITOR
			

			#include
			

			#else
			

			#include
			

			#endif
			

			#include
			

			#include
			

			

			using namespace VXV;
			

			

			JNIEXPORT void JNICALL Java_JvFollowLine_doFollowLine (JNIEnv *env, jobject obj, jobjectArray args) {
			

			

			// Getting argc and argv
			

			jsize argc = env->GetArrayLength(args);
			

			char *argv[128];
			

			

			for(int i = 0; i
			

			jstring thObj = (jstring)env->GetObjectArrayElement(args, i);
			

			char *thStr = (char*)env->GetStringUTFChars(thObj, 0);
			

			argv[i] = thStr;
			

			}
			

			

			// Displaying the arguments (argc and argv)
			

			for(int i = 0; i
			< argc; i++) printf("argc = %i; argv[%i] = %s
			

			", argc, i, argv[i]);
			

			

			try {
			

			#if !MONITOR
			

			RunCtrl run;
			

			#else
			

			mRunCtrl run;
			

			vmonitor::show();
			

			#endif
			

			if (run.connect(argc, argv)
			< 0) {
			

			printf("RunCtrl::connect: %s
			

			", run.what());
			

			exit(1);
			

			}
			

			

			// Move forward for 3 second
			

			run.followLine(Position(0, 0, deg(0)));
			

			VXV::Delay(3000);
			

			run.stop();
			

			VXV::Delay(1000);
			

			

			} catch (std::exception& e) {
			

			printf("exception: %s
			

			", e.what());
			

			}
			

			

			return;
			

			}
			

		

BTW: this program is to move a mobile robot forward for 3 second