It can not worked well ,and the log is blow,please help me ,thank you!

[liuxgchi]

FATAL EXCEPTION: main Process: com.sunnymum.xing, PID: 17390 java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.sunnymum.client-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]] couldn't find "libmupdf.so" at java.lang.Runtime.loadLibrary(Runtime.java:366) at java.lang.System.loadLibrary(System.java:988) at com.artifex.mupdfdemo.MuPDFCore.(MuPDFCore.java:16) at com.artifex.mupdfdemo.MuPDFActivity.openFile(MuPDFActivity.java:212) at com.artifex.mupdfdemo.MuPDFActivity.onCreate(MuPDFActivity.java:308)