Android Studio萌新写opencv程序时文件闪退

[Fate_Amy]

在写Android软件时，调用按键响应函数时软件出现闪退现象，日志给出了以下错误，求大佬帮忙看看怎么解决
java.lang.UnsatisfiedLinkError: No implementation found for android.graphics.Bitmap com.example.fish.MainActivity.bmp2gray(android.graphics.Bitmap) (tried Java_com_example_fish_MainActivity_bmp2gray and Java_com_example_fish_MainActivity_bmp2gray__Landroid_graphics_Bitmap_2)
at com.example.fish.MainActivity.bmp2gray(Native Method)
at com.example.fish.MainActivity$1.onClick(MainActivity.java:42)
at android.view.View.performClick(View.java:7217)
at android.view.View.performClickInternal(View.java:7191)
at android.view.View.access$3500(View.java:828)
at android.view.View$PerformClick.run(View.java:27679)
at android.os.Handler.handleCallback(Handler.java:900)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:219)
at android.app.ActivityThread.main(ActivityThread.java:8349)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1055)