Class not found : com.loopj.android.http.AsyncHttpClient

Question

I made a jar plugin for Unity with Android Studio. My plugin use com.loopj.android.http.AsyncHttpClient. But the class is not found. The console of Unity shows me these errors:

2021/07/02 10:23:29.751 6409 6429 Error Unity AndroidJavaException: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/loopj/android/http/AsyncHttpClient;
2021/07/02 10:23:29.751 6409 6429 Error Unity java.lang.NoClassDefFoundError: Failed resolution of: Lcom/loopj/android/http/AsyncHttpClient;
2021/07/02 10:23:29.751 6409 6429 Error Unity   at java.lang.reflect.Executable.getParameterTypesInternal(Native Method)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at java.lang.reflect.Method.getParameterTypes(Method.java:186)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at java.lang.Class.getDeclaredMethods(Class.java:1884)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at com.unity3d.player.ReflectionHelper.getMethodID(Unknown Source:26)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at com.unity3d.player.UnityPlayer.nativeRender(Native Method)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at com.unity3d.player.UnityPlayer.access$300(Unknown Source:0)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at com.unity3d.player.UnityPlayer$e$1.handleMessage(Unknown Source:95)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at android.os.Handler.dispatchMessage(Handler.java:103)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at android.os.Looper.loop(Looper.java:214)
2021/07/02 10:23:29.751 6409 6429 Error Unity   at com.unity3d.player.UnityPlayer$e.run(Unknown Source:20)
2021/07/02 10:23:29.751 6409 6429 Error Unity Caused by: java.lang.ClassNotFoundException: com.loopj.android.http.AsyncHttpClient

What I can do to make the class to be found ?

Thanks for answers !

Perhaps [this](https://stackoverflow.com/questions/50461881/java-lang-noclassdeffounderrorfailed-resolution-of-lorg-apache-http-protocolve) and [this](https://gitmemory.com/issue/facebook/facebook-sdk-for-unity/276/508187934) could help? — David Lee, Jul 02 '21 at 08:33
Thanks, @DavidLee. I have already seen these links and the solutions don't work for me... — Lilian Sananikone, Jul 02 '21 at 08:44
[This](https://github.com/android-async-http/android-async-http/issues/1083#issuecomment-200258055) is the most relevant source I can find. — David Lee, Jul 02 '21 at 08:47
I have already seen this solution. It doesn't explain which class must extend mine. The used method is overrided and I have to paste it in my code without some precisions. I'm confused. `@override protected void attachBaseContext(Context base) { super.attachBaseContext(base); MultiDex.install(this); }` — Lilian Sananikone, Jul 02 '21 at 08:54
@DavidLee, I found which class to extend. It's MultiDexApplication. Now, I added the method in my class and the lines in my gradle file. However, The class MultiDexApplication takes the place of AsyncHttpClient : it's not found... — Lilian Sananikone, Jul 02 '21 at 10:24

Sabrina N · Answer 1 · 2021-07-06T14:13:29.320

0

Add this dependencies to your gradle

android {        
    // ..       
    lintOptions {
        abortOnError false
    }
}

dependencies {
    // ..
    implementation 'com.loopj.android:android-async-http:1.4.8'
}

edited Jul 06 '21 at 14:13

answered Jul 02 '21 at 08:55

Sabrina N

150
11

Thanks for your help. I had the dependency in my gradle file but nothing changes... I have already looked at the link which you sent to me. I change the minimum API level of my plugin to 23 and nothing changes too. – Lilian Sananikone Jul 02 '21 at 09:16
are you enable proguard-rules? if yes, please add this in your proguard-rules.pro: https://github.com/android-async-http/android-async-http/blob/master/library/proguard.txt – Sabrina N Jul 02 '21 at 09:26
Yes, I am enable it. I added the following lines. Nothing changes... – Lilian Sananikone Jul 02 '21 at 09:45
Have you annother idea ? – Lilian Sananikone Jul 06 '21 at 07:06
try to use latest release: implementation 'com.loopj.android:android-async-http:1.4.11' – Sabrina N Jul 06 '21 at 09:41
https://github.com/android-async-http/android-async-http/blob/master/build.gradle – Sabrina N Jul 06 '21 at 09:48
https://github.com/android-async-http/android-async-http – Sabrina N Jul 06 '21 at 09:48
Do you think it's doesn't work because I don't use Maven ? – Lilian Sananikone Jul 06 '21 at 11:27
try to changed the dependencies to a different version (1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11), then build again until error goes away. look at here https://github.com/android-async-http/android-async-http/releases – Sabrina N Jul 06 '21 at 12:49
Thanks. It seems to work well with 1.4.8. Now, I have a new error when I run the project : **Execution failed for task ':app:lint'.**. I don't have more indication. – Lilian Sananikone Jul 06 '21 at 13:57
I have modified my answer, please try with add this in your gradle: android { lintOptions { abortOnError false } } – Sabrina N Jul 06 '21 at 14:20

Lilian Sananikone · Accepted Answer · 2021-08-09T09:19:44.420

0

I added "implementation 'com.loopj.android:android-async-http:1.4.9'" between the dependencies brackets. It needs "cz.msebera.android.httpclient" to work well. Just import the class of this library you need and don't refer it in the gradle file.

edited Aug 09 '21 at 09:19

answered Jul 21 '21 at 13:43

Lilian Sananikone

41
1
9

Class not found : com.loopj.android.http.AsyncHttpClient

2 Answers2