NoClassDefFoundError: for DataBinderMapper even after enabling data binding

[AkshayChordiya]

I'm facing this critical crash even after adding this

android {
    ....
    dataBinding {
        enabled = true
    }
}

Project Setup:
Using Android 3.0 Canary 5 with Kotlin and new Android architecture components

[heinrichreimer]

Is this related to #198? Which library and Android versions are you using? Is there a specific compiler error? If so, please post the full error log.

[AkshayChordiya]

Yeah it's related to #198 even after solving it. I am facing crash.

Details:
Library version: v1.6.2
Android version: 6.0.1 (Marshmallow)

Full error log:

FATAL EXCEPTION: main
                                                                               Process: com.bitfurther.notigo.teacher, PID: 23955
                                                                               java.lang.NoClassDefFoundError: Failed resolution of: Landroid/databinding/DataBinderMapper;
                                                                                   at android.databinding.DataBindingUtil.<clinit>(DataBindingUtil.java:31)
                                                                                   at com.heinrichreimersoftware.materialintro.app.IntroActivity.onCreate(IntroActivity.java:198)
                                                                                   at com.bitfurther.notigo.teacher.ui.activity.BoardingActivity.onCreate(BoardingActivity.kt:16)
                                                                                   at android.app.Activity.performCreate(Activity.java:6251)
                                                                                   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
                                                                                   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
                                                                                   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
                                                                                   at android.app.ActivityThread.-wrap11(ActivityThread.java)
                                                                                   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
                                                                                   at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                                   at android.os.Looper.loop(Looper.java:148)
                                                                                   at android.app.ActivityThread.main(ActivityThread.java:5417)
                                                                                   at java.lang.reflect.Method.invoke(Native Method)
                                                                                   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                                                                                   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
                                                                                Caused by: java.lang.ClassNotFoundException: Didn't find class "android.databinding.DataBinderMapper" on path: DexPathList[[zip file "/data/app/com.bitfurther.notigo.teacher-1/base.apk"],nativeLibraryDirectories=[/data/app/com.bitfurther.notigo.teacher-1/lib/arm, /vendor/lib, /system/lib]]
                                                                                   at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
                                                                                   at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                                                                                   at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
                                                                                   at android.databinding.DataBindingUtil.<clinit>(DataBindingUtil.java:31) 
                                                                                   at com.heinrichreimersoftware.materialintro.app.IntroActivity.onCreate(IntroActivity.java:198) 
                                                                                   at com.bitfurther.notigo.teacher.ui.activity.BoardingActivity.onCreate(BoardingActivity.kt:16) 
                                                                                   at android.app.Activity.performCreate(Activity.java:6251) 
                                                                                   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                                                                                   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                                                                                   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                                                                                   at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                                                                                   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                                                                                   at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                                   at android.os.Looper.loop(Looper.java:148) 
                                                                                   at android.app.ActivityThread.main(ActivityThread.java:5417) 
                                                                                   at java.lang.reflect.Method.invoke(Native Method) 
                                                                                   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                                                                                   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                                                                               	Suppressed: java.lang.ClassNotFoundException: android.databinding.DataBinderMapper
                                                                                   at java.lang.Class.classForName(Native Method)
                                                                                   at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
                                                                                   at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
                                                                                   at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                                                                                   		... 16 more
                                                                                Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

[AkshayChordiya]

@heinrichreimer Need more data?

[whywilson]

Hi, @AkshayChordiya. Are you Using AIDE to compile and issue like this happen? It happens to me for several weeks, Android Studio is OK, but AIDE still occurred with this log.

[AkshayChordiya]

@wilsonqq I'm using Android Studio 3.0 Canary 5 and now 6. Still it's showing the same issue. I'll add some more code to debug the issue.

[daniel-stoneuk]

@AkshayChordiya Try adding android.enableAapt2=false to your gradle.properties file.

There seems to be issues with the new Aapt compiler in AS 3.0, this should fix it.

[kolbasan]

I am having the same issue, I am using similar setup, AS 3.0 Canary 6.
Setting android.enableAapt2=false didn't fix the issue.

[AkshayChordiya]

@daniel-stoneuk Tried it, didn't work. Same crash issue.

[daniel-stoneuk]

@kolbasan @AkshayChordiya Ah damn, sorry. I presume you've had a Google to see whether it's solvable. I wonder whether this is an issue that should be resolved in the library, or if it's an external issue.

[AkshayChordiya]

Solved the issue by adding the following things to app build.gradle

1. Enabling Data Binding

android {
    ....
    dataBinding {
        enabled = true
    }
}

2. Adding dependency

dependencies {
    kapt 'com.android.databinding:compiler:2.3.3'
    ....
}

Using kapt for Kotlin.

[tasomaniac]

Same error happened to be but the compiler dependency is not available anymore for Gradle plugin version 3.2

[jwc123]

Same error happened to be but the compiler dependency is not available anymore for Gradle plugin version 3.2

i had the wrong error when i upgrade the gradle plugin version to 3.2.Do you fix it?

[chimbori]

This is not really fixed. If using the setup instructions provided in the README still cause this for many users, then either this missing dependency should be added to this library, or else the README should be updated because this bug can be marked fixed.

[naimur20]

Hi, @AkshayChordiya. Are you Using AIDE to compile and issue like this happen? It happens to me for several weeks, Android Studio is OK, but AIDE still occurred with this log.

AIDE can not generate DataBinding classes even after enabling databinding in build.gradle. Can you use databinding in AIDE?