java.lang.UnsatisfiedLinkError：找不到本机方法：org.pjsip.pjsua.pjsuaJNI.new_pjsua_buddy_config :(）J

Question

我在CSipSimple工作。当我尝试addBuddy时，执行以下代码。

public int addBuddy(String buddyUri) throws SameThreadException {
        created = true ;
        if (!created) {
            return -1;
        }
        int[] p_buddy_id = new int[1];

        pjsua_buddy_config buddy_cfg = new pjsua_buddy_config();
        pjsua.buddy_config_default(buddy_cfg);
        buddy_cfg.setSubscribe(1);
        buddy_cfg.setUri(pjsua.pj_str_copy(buddyUri));

        pjsua.buddy_add(buddy_cfg, p_buddy_id);

        return p_buddy_id[0];
    }

pjsua_buddy_config的构造函数调用以下代码：

public pjsua_buddy_config() {
    this(pjsuaJNI.new_pjsua_buddy_config(), true);
  }

那时我得到以下例外：

FATAL EXCEPTION: main
    Process: com.csipsimple, PID: 11070
    java.lang.UnsatisfiedLinkError: Native method not found: org.pjsip.pjsua.pjsuaJNI.new_pjsua_buddy_config:()J
            at org.pjsip.pjsua.pjsuaJNI.new_pjsua_buddy_config(Native Method)
            at org.pjsip.pjsua.pjsua_buddy_config.<init>(pjsua_buddy_config.java:64)
            at com.csipsimple.pjsip.PjSipService.addBuddy(PjSipService.java:1481)
            at com.csipsimple.service.SipService.addBuddy(SipService.java:1603)
            at com.csipsimple.ui.contacts.ContactFragment$1.onClick(ContactFragment.java:160)
            at android.view.View.performClick(View.java:4471)
            at android.view.View$PerformClick.run(View.java:18784)
            at android.os.Handler.handleCallback(Handler.java:808)
            at android.os.Handler.dispatchMessage(Handler.java:103)
            at android.os.Looper.loop(Looper.java:193)
            at android.app.ActivityThread.main(ActivityThread.java:5330)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
            at dalvik.system.NativeStart.main(Native Method)

我在互联网上搜索，发现此异常是由于加载.so文件的问题。我该如何解决这个错误？