CODEWITHSUNDEEP
androidlinuxandroid-studioarchlinux
Paradox
Paradox

Reputation: 4566

Android Studio Failed to load AppCompat ActionBar with unknown error

When I run my project in Android Studio, I get the follwoing error for XML documents, i.e. activity_main.xml. I am running Android Studio on an up to date install of Manjaro Linux with the latest LTS kernel.

Render Problem
Failed to load AppCompat ActionBar with unknown error.

Failed to instantiate one or more classes The following classes could not be instantiated: android.support.v7.widget.AppCompatImageView (Open Class, Show Exception, Clear Cache) - android.support.v7.widget.Toolbar (Open Class, Show Exception, Clear Cache) - android.support.v7.widget.AppCompatTextView (Open Class, Show Exception, Clear Cache) - android.support.v7.widget.ActionBarContextView (Open Class, Show Exception, Clear Cache) - android.support.v7.app.WindowDecorActionBar (Open Class, Show Exception, Clear Cache) - android.support.v7.widget.ActionBarOverlayLayout (Open Class, Show Exception, Clear Cache)

Stack Trace:

java.lang.ClassNotFoundException: android.support.v4.view.TintableBackgroundView
    at org.jetbrains.android.uipreview.ModuleClassLoader.load(ModuleClassLoader.java:181)
    at com.android.tools.idea.rendering.RenderClassLoader.findClass(RenderClassLoader.java:56)
    at org.jetbrains.android.uipreview.ModuleClassLoader.findClass(ModuleClassLoader.java:119)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.jetbrains.android.uipreview.ModuleClassLoader.loadClass(ModuleClassLoader.java:214)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
    at com.android.tools.idea.rendering.RenderClassLoader.defineClassAndPackage(RenderClassLoader.java:177)
    at com.android.tools.idea.rendering.RenderClassLoader.loadClassFromJar(RenderClassLoader.java:92)
    at org.jetbrains.android.uipreview.ModuleClassLoader.load(ModuleClassLoader.java:171)
    at com.android.tools.idea.rendering.RenderClassLoader.findClass(RenderClassLoader.java:56)
    at org.jetbrains.android.uipreview.ModuleClassLoader.findClass(ModuleClassLoader.java:119)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.jetbrains.android.uipreview.ModuleClassLoader.loadClass(ModuleClassLoader.java:214)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:500)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:254)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:215)
    at com.android.tools.idea.rendering.LayoutlibCallbackImpl.loadClass(LayoutlibCallbackImpl.java:218)
    at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:336)
    at android.view.BridgeInflater.onCreateView(BridgeInflater.java:155)
    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:720)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:788)
    at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:225)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
    at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:863)
    at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:837)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    at com.android.layoutlib.bridge.bars.CustomBar.<init>(CustomBar.java:90)
    at com.android.layoutlib.bridge.bars.NavigationBar.<init>(NavigationBar.java:52)
    at com.android.layoutlib.bridge.bars.NavigationBar.<init>(NavigationBar.java:46)
    at com.android.layoutlib.bridge.impl.Layout.createNavBar(Layout.java:325)
    at com.android.layoutlib.bridge.impl.Layout.<init>(Layout.java:151)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:288)
    at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:384)
    at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:193)
    at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:547)
    at com.android.tools.idea.rendering.RenderTask.lambda$inflate$3(RenderTask.java:681)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Upvotes: 1

Views: 1263

Answers (1)

Obada_alhumsi
Obada_alhumsi

Reputation: 95

try going to the build.gradle(module:app) file in your project, over there, change the following things: 

implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
implementation 'com.android.support:design:28.0.0-alpha3'

to:

implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
implementation 'com.android.support:design:28.0.0-alpha1

'

Upvotes: 3

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