集成AndroidPDFView到项目中，报了环信的.so的错。。。。这是为什么？

点击AndroidStudio运行，install apk，launch Activity，然后报错，报错信息如下：
 FATAL EXCEPTION: main
                  Process: com.justsy.community, PID: 29990
                  java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.justsy.community-1/base.apk"],nativeLibraryDirectories=[/data/app/com.justsy.community-1/lib/arm64, /data/app/com.justsy.community-1/base.apk!/lib/arm64-v8a, /vendor/lib64, /system/lib64]]] couldn't find "libhyphenate.so"
                      at java.lang.Runtime.loadLibrary(Runtime.java:379)
                      at java.lang.System.loadLibrary(System.java:1086)
                      at com.hyphenate.chat.EMClient.loadLibrary(Unknown Source)
                      at com.hyphenate.chat.EMClient.getInstance(Unknown Source)
                      at com.hyphenate.easeui.controller.EaseUI.init(EaseUI.java:112)
                      at com.justsy.community.CommunityApplication.onCreate(CommunityApplication.java:47)
                      at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1015)
                      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4837)
                      at android.app.ActivityThread.access$1600(ActivityThread.java:168)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1440)
                      at android.os.Handler.dispatchMessage(Handler.java:102)
                      at android.os.Looper.loop(Looper.java:150)
                      at android.app.ActivityThread.main(ActivityThread.java:5665)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:822)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:712)
 
 
附件是引用的资源文件
 
用的hyphenatechat_3.3.1