ndk-build issue in myNDK

[pradeep8892]

when i run this on android studio i got this error in this command " System.loadLibrary("mono");" which in class myNDK how should i resolve this error

FATAL EXCEPTION: main
Process: com.example.castoryan.orb, PID: 31860
java.lang.UnsatisfiedLinkError: Couldn't load mono from loader dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.example.castoryan.orb-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.castoryan.orb-1, /vendor/lib, /system/lib]]]: findLibrary returned null
at java.lang.Runtime.loadLibrary(Runtime.java:358)
at java.lang.System.loadLibrary(System.java:526)
at com.example.castoryan.orb.MyNDK.(MyNDK.java:19)
at com.example.castoryan.orb.MainActivity.onCreate(MainActivity.java:94)

[sera0731]

Does anybody know about this issue?