android ndk using mupdf library

开发者_StackOverflowI want to make a pdf viewer program in android phone. So, I purchased the mupdf library. I built the mupdf c++ classes and have 'libmibookreader.so' file. And I also compiled the native function classes. Then, I tried to run the application , but I have some errors.

Tag Message AndroidRuntime java.lang.UnsatisfiedLinkError: open

i think you had not load library properly or may be you had not given the name properly in System.load("libname");

What is your android version? on 2.1 and before, the lib libjnigraphics.so is missing and the mupdflib need it