Android native code issue. DllNotFoundException

Unity Engine
,
1

Hi all,

Edit : Now that I am using the android device instead of an emulator I am getting system.entrypointnotfoundexception

I am trying to call a simple native function (C++) from Unity3D. I have done the following:

Placed the libMSDKWrapper.so in Assets->Plugins->Android

This is my C# code

using UnityEngine;
using System.Collections;
using System.Runtime.InteropServices;

public class facebooktest : MonoBehaviour {

[DllImport (“MSDKWrapper”)]
private static extern long getContextNative();

void Start () {
Debug.Log(“Hello, World!”);
long context = getContextNative(); // ← Exception thrown here
Debug.Log(context);
}
}
I am getting the following exception:

system.entrypointnotfoundexception at [0x00000] in :0

I used the same libMSDKWrapper.so using java using the command

System.loadLibrary(“MSDKWrapper”);

and I was able to access and use the getContextNative() method.

Edit 1: I unzipped the contents of the apk and found that libMSDKWrapper.so file is present in test.apk/lib/armeabi-v7a

Edit 2: Here are the logcat logs.
03-25 11:40:17.543: D/dalvikvm(26176): Trying to load lib /data/data/com.disney.citygirl.goo/lib/libMSDKWrapper.so 0x41566348
03-25 11:40:17.568: D/MSDK(26176): Register Provider: SN_COMMUNITY
03-25 11:40:17.568: D/MSDK(26176): Register Provider: SN_FACEBOOK
03-25 11:40:17.568: D/dalvikvm(26176): Added shared lib /data/data/com.disney.citygirl.goo/lib/libMSDKWrapper.so 0x41566348
03-25 11:40:17.568: I/MSDK(26176): JNI_OnLoad called
03-25 11:40:17.573: D/dalvikvm(26176): Trying to load lib /data/data/com.disney.citygirl.goo/lib/libMSDKWrapper.so 0x41566348
03-25 11:40:17.573: D/dalvikvm(26176): Shared lib ‘/data/data/com.disney.citygirl.goo/lib/libMSDKWrapper.so’ already loaded in same CL 0x41566348
03-25 11:40:17.598: I/Unity(26176): System.EntryPointNotFoundException: getContextNative
03-25 11:40:17.598: I/Unity(26176): at (wrapper managed-to-native) SocialAccess:getContextNative ()
03-25 11:40:17.598: I/Unity(26176): at SocialAccess.OnClick () [0x00000] in :0
03-25 11:40:17.598: I/Unity(26176):
03-25 11:40:17.598: I/Unity(26176): (Filename: ./Runtime/ExportGenerated/AndroidManaged/UnityEngineDebug.cpp Line: 43)

2

import namespace of that dll. I mean write using MSDKWrapper or whatever required on top of your code.

3

That gives me “Assets/Plugins/facebooktest.cs(4,7): error CS0246: The type or namespace name `MSDKWrapper’ could not be found. Are you missing a using directive or an assembly”

4

Then just do one thing after writing using you will get a menu from that menu you can find your custom class name just import that one.

5

libMSDKWrapper.so is not an namespace. It is therefore not coming in the dropdown after I type using.

6

Hi, intellectual, did you solve your problem? Could you share your solution with me ? I met almost the same problem. Thank you ~