flipper: ClassNotFoundException : OnUnhandledKeyEventListener

fixed by:

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == "com.android.support") {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion "26.+"
            }
        }
    }
}

fixed by:

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == "com.android.support") {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion "26.+"
            }
        }
    }
}

It works for me! Thanks!

In case you’re using androidx:

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == "androidx") {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion "${targetSdk}.+"
            }
        }
    }
}

The answer from @tianzhijiexian didn’t work for me. I got a similar error using androidx:

I/art: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener; at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2341) at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62) at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2) at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430) at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:652) at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:812) at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:752) at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:883) at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:846) at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) [XposedOriginal] (LayoutInflater.java:522) at java.lang.Object de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative!(java.lang.reflect.Member, int, java.lang.Class[], java.lang.Class, java.lang.Object, java.lang.Object[]) (XposedBridge.java:-2) at java.lang.Object de.robv.android.xposed.XposedBridge.handleHookedMethod(java.lang.reflect.Member, int, java.lang.Object, java.lang.Object, java.lang.Object[]) (XposedBridge.java:360) I/art: at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) [XposedHooked] (<Xposed>:-1) at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:430) at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377) at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607) at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518) at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466) at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140) at void com.sterbsociety.orarisapienza.activities.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:14) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6858) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1119) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2677) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2785) at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1532) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102) at void android.os.Looper.loop() (Looper.java:163) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6337) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:880) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:770) at void de.robv.android.xposed.XposedBridge.main(java.lang.String[]) (XposedBridge.java:107) Caused by: java.lang.ClassNotFoundException: Didn’t find class “android.view.View$OnUnhandledKeyEventListener” on path: DexPathList[[zip file “/data/app/com.sterbsociety.orarisapienza-2/base.apk”],nativeLibraryDirectories=[/data/app/com.sterbsociety.orarisapienza-2/lib/arm64, /data/app/com.sterbsociety.orarisapienza-2/base.apk!/lib/arm64-v8a, /system/lib64, /vendor/lib64]] at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56) at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380) at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312) at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2341) at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62) at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2) at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430) I/art: at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:652) at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:812) at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:752) at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:883) at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:846) at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) [XposedOriginal] (LayoutInflater.java:522) at java.lang.Object de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative!(java.lang.reflect.Member, int, java.lang.Class[], java.lang.Class, java.lang.Object, java.lang.Object[]) (XposedBridge.java:-2) at java.lang.Object de.robv.android.xposed.XposedBridge.handleHookedMethod(java.lang.reflect.Member, int, java.lang.Object, java.lang.Object, java.lang.Object[]) (XposedBridge.java:360) at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) [XposedHooked] (<Xposed>:-1) at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:430) at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377) at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607) at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518) at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466) at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140) at void com.sterbsociety.orarisapienza.activities.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:14) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6858) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1119) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2677) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2785) at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1532) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102) at void android.os.Looper.loop() (Looper.java:163) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6337) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:880) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:770) at void de.robv.android.xposed.XposedBridge.main(java.lang.String[]) (XposedBridge.java:107)

Here I see the same that you’ve posted before. I’m talking of configurations.all { … }. Anyway I copied this part into my build.gradle but the problem still occurs. Where am I wrong?

Still won’t do

That’s my point. There is no fix for androidx, except maybe forcing everyone to use a very recent SDK which is not a real solution.

https://issuetracker.google.com/issues/120750246

@stonyz/@FireZenk I don’t see how your gradle code can possible solve this annoying issue when the no artifacts have a group name of “androidx”. This will never be true:

 if (requested.group == "androidx") {

Also, your code specifies

    details.useVersion "${targetSdk}.+"

when it should be

    details.useVersion "${targetSdkVersion}.+"

But that won’t work either since none of the androidx artifacts use the targetSdkVersion. And no single version will work for all androidx artifacts as you can see from this table the versions are different based on the artifact:

activity	August 7, 2019	-	1.0.0-rc01	-	1.1.0-alpha02
ads	August 7, 2019	-	-	-	1.0.0-alpha01
annotation	June 5, 2019	1.1.0	-	-	-
appcompat	July 2, 2019	1.0.2	1.1.0-rc01	-	-
arch	July 2, 2019	2.0.1	2.1.0-rc01	-	-
asynclayoutinflater	September 21, 2018	1.0.0	-	-	-
autofill	August 7, 2019	-	-	-	1.0.0-alpha02
…

Androidx Versions

Even if this code worked, it’s a really bad idea to override every version. Rarely will you be able to remain on the same version for all artifacts.

gradle code to dump androidx dependencies in format: path group : artifact : version

List<String> lst = new ArrayList<String>()
configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group.startsWith("androidx.")) {
            lst.add(getPath() + "\t" +requested.group + ":" + requested.name + ":" + requested.version)
        }
    }
    if (lst.size) { Collections.sort(lst); System.out.println(lst.join("\n")) }
}

Example output:

:app:debugCompileClasspath	androidx.activity:activity:1.0.0-rc01
:app:debugCompileClasspath	androidx.activity:activity:1.0.0-rc01
:app:debugCompileClasspath	androidx.annotation:annotation:1.0.0
:app:debugCompileClasspath	androidx.annotation:annotation:1.0.1
:app:debugCompileClasspath	androidx.annotation:annotation:1.0.2
:app:debugCompileClasspath	androidx.annotation:annotation:1.1.0
:app:debugCompileClasspath	androidx.annotation:annotation:1.1.0
:app:debugCompileClasspath	androidx.annotation:annotation:1.1.0-rc01
:app:debugCompileClasspath	androidx.appcompat:appcompat-resources:1.1.0-rc01
...

it worked for me, thanks!.

fixed by:

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == "com.android.support") {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion "26.+"
            }
        }
    }
}