Backendless.initApp crash (NoClassDefFoundError)

Android
1

I know this post exists (http://support.backendless.com/t/java-lang-noclassdeffounderror-weborb-types-types), but it didn’t help me, so here we go.
I have a working app using Backendless and now I would like to add functionalities of the Facebook SDK. The only changes I’ve made are the following:

//MainActivity
protected void onCreate( Bundle savedInstanceState ){ ...
 FacebookSdk.sdkInitialize(getApplicationContext()); <--ADDED THIS
...}

//Login Activity
protected void onCreate( Bundle savedInstanceState ){...
fb_callbackManager = CallbackManager.Factory.create(); <--ADDED THIS
...}

//Build.gradle 
dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 testCompile 'junit:junit:4.12'
 compile files('libs/backendless.jar')
 compile 'com.android.support:appcompat-v7:23.1.1'
 compile 'com.android.support:design:23.1.1'
 compile 'com.android.support:cardview-v7:23.0.+'
 compile 'com.android.support:recyclerview-v7:23.1.1'
 compile 'com.google.android.gms:play-services:8.4.0'
 compile 'com.facebook.android:facebook-android-sdk:[4,5)' <--ADDED THIS
}

It builds OK, but when I run the the app…

E/AndroidRuntime: FATAL EXCEPTION: main
 Process: com.app.jgc.findamate, PID: 7876
 java.lang.NoClassDefFoundError: weborb.types.Types
 at com.backendless.UserService.&lt;init&gt;(UserService.java:56)
 at com.backendless.UserService.&lt;clinit&gt;(UserService.java:47)
 at com.backendless.Backendless.&lt;clinit&gt;(Backendless.java:42)
 at com.app.jgc.findamate.activity.ListActivitiesActivity.onCreate(ListActivitiesActivity.java:82) <--this is Backendless.initApp
 at android.app.Activity.performCreate(Activity.java:5248)
 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164)
 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249)
 at android.app.ActivityThread.access$800(ActivityThread.java:141)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:136)
 at android.app.ActivityThread.main(ActivityThread.java:5113)
 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:793)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
 at dalvik.system.NativeStart.main(Native Method)

There were already several dependencies working fine before I got the crash, so I doubt it is a matter of memory. Could it be a problem related with FB SDK? I attach my build.gradle in .txt
Thank you in advance

build.gradle.txt (1.2kB)

2

Hi Jorge,

Private posts are reserved for developers who have a paid support plan. I can make the topic public. Otherwise, please consider purchasing a support plan: https://backendless.com/support

Regards,
Mark

3

I was only editing properly the post, it is public now

4

The class it complains about “weborb.types.Types” is a part of backendless.jar. Based on what we found out from other similar posts, it seems to be a problem with the heap size - Android runs out of “space” for all imported classes. Do you think this could be the case here?

5

Thanks Mark.

I have just tried running the app commenting

import com.facebook.FacebookSdk;

, which is the only thing I have imported after the last time it worked fine. I am having the same “weborb.types.Types” problem, so I doubt this is the case.

6

Does it work if you exclude the facebook dependency?

7

Yes, it definitely works

8

Hi Jorge,

This is quite puzzling. We had a few users who were able to solve this by increasing the heap size. I feel like we’re fixing facebook’s problem here…

Would it be possible for you to attach your logcat output (with the DEBUG) mode turned on?

Regards,
Mark

9

Here it is. Thanks

jorgesLog.txt (29.26kB)

10

Thanks, Jorge. Do you have proguard enabled by any chance?

11

Yes, in the build.gradle I attached on the post there are this lines:


buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    productFlavors {
    }
12

Sorry, I missed that in the gradle file. Could you please make sure you proguard rules include the following:

-dontwarn com.backendless.**
-dontwarn weborb.**
-keep class weborb.** {*;}
-keep class com.backendless.** {*;}
13

How could I do that? Do I paste that lines in proguard-proyect.txt or proguard-rules.pro?

14

Try proguard-rules.pro

15

Well, now I have got the same error but pointing the line:

Backendless.setUrl(Defaults.SERVER_URL);

Maybe I added the rules in a wrong way, I attach proguard-rules.pro

proguard-rules.pro.txt (776B)

16

Could you show the error you’re getting now?

17 
E/AndroidRuntime: FATAL EXCEPTION: main
 Process: com.app.jgc.findamate, PID: 6411
 java.lang.NoClassDefFoundError: weborb.types.Types
 at com.backendless.UserService.&lt;init&gt;(UserService.java:56)
 at com.backendless.UserService.&lt;clinit&gt;(UserService.java:47)
 at com.backendless.Backendless.&lt;clinit&gt;(Backendless.java:42)
 at com.app.jgc.findamate.activity.ListActivitiesActivity.onCreate(ListActivitiesActivity.java:77) <--Now this is Backendless.setUrl
 at android.app.Activity.performCreate(Activity.java:5248)
 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164)
 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249)
 at android.app.ActivityThread.access$800(ActivityThread.java:141)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:136)
 at android.app.ActivityThread.main(ActivityThread.java:5113)
 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:793)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
 at dalvik.system.NativeStart.main(Native Method)
18

Would it be possible for you to zip up the project, upload to google drive or dropbox and email the link to support@backendless.com?

19

Absolutely. It is sent in 10 minutes or so. Thank you

20

Jorge,

I was able to compile and run the app without any problems. I registered a user - you should see (me) in the Users table.
https://monosnap.com/file/C5U4GXrSL7eSqecPn9flPK3NQpSYMH

I am using Android Studio 1.5.1, same project without a single change.

Mark