NameNotFoundException webview

android webview proguard android-5.0-lollipop inflate-exception
38,916

Solution 1

It's likely that this is happening in the very short time frame immediately after Lollipop's Android System WebView application updates.

I'd seen this error in the Google Play Dev Console, but also had never been able to reproduce it on my Nexus 5, regardless of how much I really tried to stop my app from having access to the Android System WebView app: 

java.lang.RuntimeException: Unable to create application com.uninteresting.app.name:
    android.util.AndroidRuntimeException: android.content.pm.PackageManager$NameNotFoundException: com.google.android.webview

Then we got word that our app was consistently crashing with the above message on some devices immediately after the System WebView app updates, so I tested that. Still no results, the vanilla Nexus 5 refused to crash our app! So I tried other phones from other manufacturers (roughly 75% of our reports are from Samsung Galaxy devices) and suddenly we were crashing consistently. My testing methodology:

  1. Open your app, make sure a WebView is showing.
  2. Open Play Store, navigate to "My Apps," and bring up "Android System WebView." Uninstall updates. This shouldn't crash you, but you should see your app force-restart.
  3. Open your app back up and let it recover from the restart.
  4. Go back into the Play Store and update Android System WebView.
  5. Re-focus your app during the update process. Now, if you're on an affected device, it should crash. If not, your app will just be pushed to the background and quietly restarted.

A few little caveats with what I've said so far:

  • Our app makes the mistake of starting up a WebView extremely early, hence why we get "unable to create application" in our crash message. The user doesn't even have to be looking at our app for it to crash. I doubt this applies to you, but if your app attempts to restart its activity containing a WebView during this scenario, that would explain it.
  • 100% of our reports are from 5.0 devices, I have no earthly clue how this could occur on anything below Lollipop.
  • We do see reports of Nexus 4 and Nexus 5 with this error, so I don't know why I can't reproduce it on those devices. Might be a separate root cause, but I need to look further into that.

In short, I don't immediately think you're doing anything incorrect with ProGuard or your JavascriptInterface. I'm leaning very strongly toward blaming the firmware as the root cause of the majority of reports, resulting in what should be a smooth update process becoming one that instead causes some apps to outright crash.

Edit: I ran a few more tests and it turns out that all the devices that didn't crash are 5.0 or 5.0.1, while all the devices that did crash were 5.0.2, so I can't comfortably point my finger at OEMs anymore.

Solution 2

Easy way to check with androidx.webkit library:

dependencies {
    ...
    implementation 'androidx.webkit:webkit:1.4.0'
}

Use WebViewCompat.getCurrentWebViewPackage method before (for example, ads):

val webViewPackageInfo = WebViewCompat.getCurrentWebViewPackage(appContext)
Timber.d("📦 web view package info: %s", webViewPackageInfo?.toString())
val isWebViewPackageAvailable = webViewPackageInfo != null
prepareWithAds(canPlayAds = isWebViewPackageAvailable)

Steps for reproduce:

  1. Disable or delete system WebView service
  • Disable: Go to system settings menu -> Apps -> Android System WebView -> Disable
  • Delete:
adb root
adb shell pm uninstall -k --user 0 com.google.android.webview
  1. Open smth WebView
  2. Then WebView will crashed if package unavailable:

E/WebViewFactory: Chromium WebView package does not exist android.webkit.WebViewFactory$MissingWebViewPackageException: Failed to load WebView provider: No WebView installed

Share:
38,916
Kasper Finne Nielsen
Author by

Kasper Finne Nielsen

Updated on July 08, 2022

Comments

  • Kasper Finne Nielsen
    Kasper Finne Nielsen almost 2 years

    I am getting errors from Crashlytics that indicates that some devices are missing com.google.android.webview. How is that even possible?

    java.lang.RuntimeException: Unable to start activity   ComponentInfo{com.myapp.app/com.myapp.ReaderActivity}: android.view.InflateException: Binary XML file line #29: Error inflating class com.myapp.MyWebView
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
       at android.app.ActivityThread.access$800(ActivityThread.java:144)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5221)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.view.InflateException: Binary XML file line #29: Error inflating class com.myapp.MyWebView
       at android.view.LayoutInflater.createView(LayoutInflater.java:633)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.createCustomViewInternal(SourceFile:206)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.access$000(SourceFile:20)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater$PrivateWrapperFactory2.onCreateView(SourceFile:297)
       at android.view.LayoutInflater$FactoryMerger.onCreateView(LayoutInflater.java:177)
       at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.inflate(SourceFile:60)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
       at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(SourceFile:228)
       at android.support.v7.app.ActionBarActivity.setContentView(SourceFile:102)
       at com.myapp.ReaderActivity.onCreate(SourceFile:120)
       at android.app.Activity.performCreate(Activity.java:5933)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
       at android.app.ActivityThread.access$800(ActivityThread.java:144)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5221)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.reflect.InvocationTargetException
       at java.lang.reflect.Constructor.newInstance(Constructor.java)
       at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
       at android.view.LayoutInflater.createView(LayoutInflater.java:607)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.createCustomViewInternal(SourceFile:206)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.access$000(SourceFile:20)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater$PrivateWrapperFactory2.onCreateView(SourceFile:297)
       at android.view.LayoutInflater$FactoryMerger.onCreateView(LayoutInflater.java:177)
       at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.inflate(SourceFile:60)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
       at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(SourceFile:228)
       at android.support.v7.app.ActionBarActivity.setContentView(SourceFile:102)
       at com.myapp.ReaderActivity.onCreate(SourceFile:120)
       at android.app.Activity.performCreate(Activity.java:5933)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
       at android.app.ActivityThread.access$800(ActivityThread.java:144)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5221)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.util.AndroidRuntimeException: android.content.pm.PackageManager$NameNotFoundException: com.google.android.webview
       at android.webkit.WebViewFactory.getFactoryClass(WebViewFactory.java:161)
       at android.webkit.WebViewFactory.getProvider(WebViewFactory.java:101)
       at android.webkit.WebView.getFactory(WebView.java:2185)
       at android.webkit.WebView.ensureProviderCreated(WebView.java:2180)
       at android.webkit.WebView.setOverScrollMode(WebView.java:2239)
       at android.view.View.(View.java:3581)
       at android.view.View.(View.java:3675)
       at android.view.ViewGroup.(ViewGroup.java:491)
       at android.widget.AbsoluteLayout.(AbsoluteLayout.java:55)
       at android.webkit.WebView.(WebView.java:538)
       at android.webkit.WebView.(WebView.java:483)
       at android.webkit.WebView.(WebView.java:466)
       at android.webkit.WebView.(WebView.java:453)
       at com.myapp.MyWebView.(SourceFile:31)
       at java.lang.reflect.Constructor.newInstance(Constructor.java)
       at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
       at android.view.LayoutInflater.createView(LayoutInflater.java:607)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.createCustomViewInternal(SourceFile:206)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.access$000(SourceFile:20)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater$PrivateWrapperFactory2.onCreateView(SourceFile:297)
       at android.view.LayoutInflater$FactoryMerger.onCreateView(LayoutInflater.java:177)
       at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.inflate(SourceFile:60)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
       at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(SourceFile:228)
       at android.support.v7.app.ActionBarActivity.setContentView(SourceFile:102)
       at com.myapp.ReaderActivity.onCreate(SourceFile:120)
       at android.app.Activity.performCreate(Activity.java:5933)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
       at android.app.ActivityThread.access$800(ActivityThread.java:144)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5221)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.content.pm.PackageManager$NameNotFoundException: com.google.android.webview
       at android.app.ApplicationPackageManager.getPackageInfo(ApplicationPackageManager.java:114)
       at android.webkit.WebViewFactory.getFactoryClass(WebViewFactory.java:133)
       at android.webkit.WebViewFactory.getProvider(WebViewFactory.java:101)
       at android.webkit.WebView.getFactory(WebView.java:2185)
       at android.webkit.WebView.ensureProviderCreated(WebView.java:2180)
       at android.webkit.WebView.setOverScrollMode(WebView.java:2239)
       at android.view.View.(View.java:3581)
       at android.view.View.(View.java:3675)
       at android.view.ViewGroup.(ViewGroup.java:491)
       at android.widget.AbsoluteLayout.(AbsoluteLayout.java:55)
       at android.webkit.WebView.(WebView.java:538)
       at android.webkit.WebView.(WebView.java:483)
       at android.webkit.WebView.(WebView.java:466)
       at android.webkit.WebView.(WebView.java:453)
       at com.myapp.MyWebView.(SourceFile:31)
       at java.lang.reflect.Constructor.newInstance(Constructor.java)
       at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
       at android.view.LayoutInflater.createView(LayoutInflater.java:607)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.createCustomViewInternal(SourceFile:206)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.access$000(SourceFile:20)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater$PrivateWrapperFactory2.onCreateView(SourceFile:297)
       at android.view.LayoutInflater$FactoryMerger.onCreateView(LayoutInflater.java:177)
       at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
       at uk.co.chrisjenx.calligraphy.CalligraphyLayoutInflater.inflate(SourceFile:60)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
       at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
       at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(SourceFile:228)
       at android.support.v7.app.ActionBarActivity.setContentView(SourceFile:102)
       at com.myapp.ReaderActivity.onCreate(SourceFile:120)
       at android.app.Activity.performCreate(Activity.java:5933)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
       at android.app.ActivityThread.access$800(ActivityThread.java:144)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5221)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

    And it is only from devices running Lollipop. I have tested it on my Nexus 5, but I can not reproduce the error. I am using proguard

    My MyWebView looks like this:

    public class MyWebView extends WebView {

    public static final String tag = MyWebView.class.getName();
    private HtmlJSInterfaceNew js;

    public MyWebView(Context context) {
        super(context);
        gd = new GestureDetector(context, sogl);
        init();
    }

    public MyWebView(Context context, AttributeSet attrs) {
        super(context, attrs);
        gd = new GestureDetector(context, sogl);
        init();
    }

    public MyWebView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        gd = new GestureDetector(context, sogl);
        init();
    }

    @SuppressLint("NewApi")
    private void init() {
        setPadding(0, 0, 0, 0);
        MyWebViewClient myWebViewClient = new MyWebViewClient();        
        this.setWebViewClient(myWebViewClient);
        setWebChromeClient(new MyWebChromeClient());
        if(!isInEditMode())
        {
            getSettings().setAllowFileAccess(true);
            getSettings().setJavaScriptCanOpenWindowsAutomatically(false);
            getSettings().setJavaScriptEnabled(true);
            WebSettings webSettings = getSettings();

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
                webSettings.setAllowContentAccess(false);
            }

            webSettings.setUseWideViewPort(true);


        }


    }
    public void addMyJavascriptInterface(HtmlJSInterfaceNew htmlJSInterface, String string) {
        js = htmlJSInterface;
        addJavascriptInterface(htmlJSInterface, string);
    }

    public class MyWebChromeClient extends WebChromeClient
    {
        public void onProgressChanged(WebView view, int progress) {
        }
    }
}

    The root cause most be: 

    android.util.AndroidRuntimeException: android.content.pm.PackageManager$NameNotFoundException: com.google.android.webview
       at android.webkit.WebViewFactory.getFactoryClass(WebViewFactory.java:161)

    So I am thinking it might have something to do with proguard and maybe the JavascriptInterface. Any ideas?

    EDIT: from grepcode I have found the method getFactoryClass:

    private static Class<WebViewFactoryProvider> getFactoryClass() throws ClassNotFoundException {
        Application initialApplication = AppGlobals.getInitialApplication();
        try {
            // First fetch the package info so we can log the webview package version.
            String packageName = getWebViewPackageName();
            sPackageInfo = initialApplication.getPackageManager().getPackageInfo(packageName, 0);
            Log.i(LOGTAG, "Loading " + packageName + " version " + sPackageInfo.versionName +
                          " (code " + sPackageInfo.versionCode + ")");

            // Construct a package context to load the Java code into the current app.
            Context webViewContext = initialApplication.createPackageContext(packageName,
                    Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY);
            initialApplication.getAssets().addAssetPath(
                    webViewContext.getApplicationInfo().sourceDir);
            ClassLoader clazzLoader = webViewContext.getClassLoader();
            Trace.traceBegin(Trace.TRACE_TAG_WEBVIEW, "Class.forName()");
            try {
                return (Class<WebViewFactoryProvider>) Class.forName(CHROMIUM_WEBVIEW_FACTORY, true,
                                                                     clazzLoader);
            } finally {
                Trace.traceEnd(Trace.TRACE_TAG_WEBVIEW);
            }
        } catch (PackageManager.NameNotFoundException e) {
            // If the package doesn't exist, then try loading the null WebView instead.
            // If that succeeds, then this is a device without WebView support; if it fails then
            // swallow the failure, complain that the real WebView is missing and rethrow the
            // original exception.
            try {
                return (Class<WebViewFactoryProvider>) Class.forName(NULL_WEBVIEW_FACTORY);
            } catch (ClassNotFoundException e2) {
                // Ignore.
            }
            Log.e(LOGTAG, "Chromium WebView package does not exist", e);
            throw new AndroidRuntimeException(e);
        }
    }
  • Robert Nekic
    Robert Nekic about 9 years
    We have a handful of these errors reported in our Crashlytics data from users with Android 4.0.4, 4.2.2, 4.4.2, 5.0, 5.0.1, 5.0.2, and 5.1. It's very rare: about 30 reports for an app with several million installs.
  • Riley C
    Riley C about 9 years
    @RobertNekic With a comparable number of installs, we've only ever seen this on 5.0 and 5.1, and based on the cause of our issue, I can't see how it would occur on anything lower. I'd love to know what's causing those in particular.
  • Robert Nekic
    Robert Nekic about 9 years
    Ahhh, it appears Crashlytics is lumping another problem into the same issue. They show 2% are pre-5.0. It took some digging to find an example...and it's a totally different underlying error. Both trigger a RuntimeException inflating the webview which is close enough for Crashlytics, I guess.
  • Nar
    Nar almost 9 years
    In my case, the error appears after the method is called WebView.setWebContentsDebuggingEnabled (true)
  • Riley C
    Riley C almost 9 years
    @Nar I see! So you happen to have a reference to a static method in the WebView class early on, triggering this issue without even creating a view. That explains why this bug is more common that I would have expected.
  • Jared Burrows
    Jared Burrows almost 9 years
    @RileyC I am seeing this with Google Admob, are you using ads as well?
  • Riley C
    Riley C almost 9 years
    @JaredBurrows I am not using Admob in our app, no, but from the various ad SDKs I've worked with, WebViews are a common theme. As with Nar's comment above, if these SDKs were to call a static WebView method sufficiently early (maybe even in a static initializer), that could potentially trigger this.
  • Jared Burrows
    Jared Burrows almost 9 years
    @RileyC Thanks for your reply. I have report this issue in the Admob Google Groups.
  • android developer
    android developer almost 9 years
    @JaredBurrows Can you please show a link about the report? Was it fixed somehow? I got this same error today.
  • Jared Burrows
    Jared Burrows almost 9 years
    @androiddeveloper Just google for it: code.google.com/p/android/issues/detail?id=175124 and groups.google.com/forum/#!topic/google-admob-ads-sdk/…. This seems to affect a lot of people.
  • android developer
    android developer almost 9 years
    @JaredBurrows Thank you.
  • MatPag
    MatPag over 8 years
    Here the correct informations from a chromium team member. code.google.com/p/chromium/issues/detail?id=506369 Seems can't be solved at the moment
  • Sufian
    Sufian about 8 years
    @RileyC as Mat said, it is not going to be fixed as stated in this comment. It says that it might be happening when the the WebView client is being updated. The app restarts when installation is complete.
  • Alexey Ozerov
    Alexey Ozerov over 7 years
    I'm trying to work around this by registering a Broadcast receiver for android.intent.action.PACKAGE_REPLACED and then then restart my app after Package com.google.android.webview is updated (if it was running and should be restarted).
  • Tasneem
    Tasneem about 6 years
    Facing this issue in support lib 27 as well, any solution for this ?
  • jocoders
    jocoders over 3 years
    where did you find Android System WebView on your phone?

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