Android Studio出现问题！无法解析符号R，找不到与给定名称匹配的资源

我在使用Android Studio时遇到了大问题。我最近与我的朋友一起开发了一个项目，当我打开它时，项目中的所有R都变成红色（“无法解析符号R”）。

我搜索了此问题的答案，并尝试了几乎所有方法...同步Gradle，等级清洁等...哦，当我使用Build-> Clean Project时，它返回118错误。完整）控制台输出：

 Executing tasks: [:app:assembleDebug]

Configuration on demand is an incubating feature.
Relying on packaging to define the extension of the main artifact has been deprecated and is scheduled to be removed in Gradle 2.0
:app:preBuild
:app:compileDebugNdk
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild
:app:prepareComAndroidSupportAppcompatV72100Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42100Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:9: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Body1'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:11: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Body2'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:13: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Button'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:15: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Caption'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:17: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Display1'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:19: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Display2'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:21: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Display3'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:23: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Display4'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:25: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Headline'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:27: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Inverse'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:29: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Large'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:31: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Large.Inverse'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:33: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.PopupMenu.Large'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:35: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.PopupMenu.Small'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:37: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Medium'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:39: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Medium.Inverse'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:41: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Menu'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:43: error: Error retrieving parent for item: No resource found that matches the given name '@android:TextAppearance.Material.SearchResult.Subtitle'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:45: error: Error retrieving parent for item: No resource found that matches the given name '@android:TextAppearance.Material.SearchResult.Title'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:47: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Small'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:49: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Small.Inverse'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:51: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Subhead'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:53: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Title'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:55: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Menu'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:57: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Subtitle'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:59: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Subtitle.Inverse'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:61: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Title'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:63: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Title.Inverse'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:65: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionMode.Subtitle'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:67: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionMode.Title'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:69: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.PopupMenu.Large'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:71: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.PopupMenu.Small'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:73: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Button'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:75: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Subtitle'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:77: error: Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.ActionBar.Title'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v11\values.xml:39: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v14\values.xml:12: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v11\values.xml:46: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v14\values.xml:20: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v11\values.xml:53: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v14\values.xml:28: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v11\values.xml:60: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v14\values.xml:36: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:87: error: Error retrieving parent for item: No resource found that matches the given name 'android:ThemeOverlay.Material'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:89: error: Error retrieving parent for item: No resource found that matches the given name 'android:ThemeOverlay.Material.ActionBar'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:93: error: Error retrieving parent for item: No resource found that matches the given name 'android:ThemeOverlay.Material.Dark'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:100: error: Error retrieving parent for item: No resource found that matches the given name 'android:ThemeOverlay.Material.Dark.ActionBar'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:108: error: Error retrieving parent for item: No resource found that matches the given name 'android:ThemeOverlay.Material.Light'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:267: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionBar.TabText'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:269: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionBar.TabView'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:271: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:273: error: Error retrieving parent for item: No resource found that matches the given 
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:259: error: Error: No resource found that matches the given name: attr 'android:colorPrimary'.
C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug\values-v21\values.xml:260: error: Error: No resource found that matches the given name: attr 'android:colorPrimaryDark'.

 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    C:\Users\Juliano\Downloads\Compressed\adt-bundle-windows-x86_64-20140321\adt-bundle-windows-x86_64-20140321\sdk\build-tools\20.0.0\aapt.exe package -f --no-crunch -I C:\Users\Juliano\Downloads\Compressed\adt-bundle-windows-x86_64-20140321\adt-bundle-windows-x86_64-20140321\sdk\platforms\android-14\android.jar -M C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\manifests\debug\AndroidManifest.xml -S C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\res\debug -A C:\Users\Juliano\Documents\Projects\HueLoc\app\build\intermediates\assets\debug -m -J C:\Users\Juliano\Documents\Projects\HueLoc\app\build\generated\source\r\debug -F 

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 9.873 secs

是的，就是这样。.请有人帮助我！（我使用的是W7，Android Studio最新版本）

//更新：我通过删除“ value21”文件夹中的value.xml文件来修复它……显然Android Studio进行了更新，这迫使我使用Android L ...我更改了appcompat库的版本在我的项目的build.grade中（依赖项）到19（我使用的是21，因此我进行了降级）...