以下類無法實例化：android.support.design.widget.CoordinatorLayout

Question

有人知道這是關於什麼嗎？

這裏是我的依賴關係：

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    compile 'com.android.support:design:22.2.0' 
    compile 'com.android.support:appcompat-v7:22.2.0' 
    compile 'com.android.support:cardview-v7:22.0.0' 
    compile 'com.android.support:gridlayout-v7:22.0.0' 
    compile 'com.android.support:palette-v7:22.0.0' 
    compile 'com.android.support:recyclerview-v7:22.0.0' 
} 

我從Android支持庫進口的一切，同步的Gradles。任何人都知道爲什麼我在佈局中出現渲染問題？

以下是錯誤日誌：

---

java.lang.NoClassDefFoundError: Could not initialize class android.support.design.widget.CoordinatorLayout 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) 
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) 
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513) 
    at org.jetbrains.android.uipreview.ViewLoader.createNewInstance(ViewLoader.java:413) 
    at org.jetbrains.android.uipreview.ViewLoader.loadView(ViewLoader.java:105) 
    at com.android.tools.idea.rendering.LayoutlibCallback.loadView(LayoutlibCallback.java:177) 
    at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:214) 
    at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:142) 
    at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:806) 
    at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:64) 
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:782) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
    at android.view.LayoutInflater.inflate(LayoutInflater.java:385) 
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:413) 
    at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:321) 
    at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:350) 
    at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:497) 
    at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:485) 
    at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:894) 
    at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:485) 
    at com.android.tools.idea.rendering.RenderTask.render(RenderTask.java:590) 
    at com.intellij.android.designer.designSurface.AndroidDesignerEditorPanel$6.run(AndroidDesignerEditorPanel.java:480) 
    at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:320) 
    at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:310) 
    at com.intellij.util.ui.update.MergingUpdateQueue$2.run(MergingUpdateQueue.java:254) 
    at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:269) 
    at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:227) 
    at com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:217) 
    at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238) 
    at com.intellij.util.Alarm$Request$1.run(Alarm.java:351) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:138) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) 
    at java.lang.Thread.run(Thread.java:695) 

Answer 1

我也面臨着同樣的問題，根據您的情況導入後的支持庫和同步的Gradles需要重建項目。

當我完成這個程序後，它爲我工作，我希望這會有所幫助。