Android Studio無法關聯Api23源碼-提示Souces for android api 23 platform not found

最近升級了As，然后忽然就關聯不上源碼了，很不方便，找個Activity的源碼都只有outline沒有解釋，還提示這個錯誤：

Decompiled .class file, bytecode version： Souces for android api 23 platform not found

在D:\Android\sdk\sources\android-23明明下載了源碼，找了半天，原來是AS的默認配置有問題。最后的解決方法在 StackOverFlow的這個帖子上：

Sources for Android API 23 Platfrom not found (Android Studio 2.0)

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For people facing the same problem, the solution is in this post for Linux and in the same topic here for Windows (thanks to Aamir Abro). Basically you have to edit jdk.table.xml file for API level you are missing. I don't know why, but Android 2.0 and 2.1 RC don't have filled <root type="composite" />in <sourcePath>. I updated sources' path <root type="simple" url="file://D:/android/sdk/sources/android-23" /> and now it works. Windows file location: C:\Users{USER_NAME}.AndroidStudio2.0\config\options\jdk.table.xml Linix file location: ~/Library/Preferences/AndroidStudioBeta/options/jdk.table.xml

 具體操作是：找到jdk.table.xml這個文件，在<sourcePath>節點下添加這一句<root type="simple" url="file://D:/android/sdk/sources/android-23" />

修改后的部分配置文件如下：

<jdk version="2">
      <name value="Android API 23 Platform" />
      <type value="Android SDK" />
      <homePath value="D:\Android\sdk" />
      <roots>
        <annotationsPath>
          <root type="composite">
            <root type="simple" url="jar://$APPLICATION_HOME_DIR$/plugins/android/lib/androidAnnotations.jar!/" />
          </root>
        </annotationsPath>
        <classPath>
          <root type="composite">
            <root type="simple" url="jar://D:/Android/sdk/platforms/android-23/android.jar!/" />
            <root type="simple" url="file://D:/Android/sdk/platforms/android-23/data/res" />
          </root>
        </classPath>
        <javadocPath>
          <root type="composite">
            <root type="simple" url="file://D:/Android/sdk/docs/reference" />
          </root>
        </javadocPath>
        <sourcePath>
          <root type="composite">
            <root type="simple" url="file://D:/Android/sdk/sources/android-23" />
          </root>
        </sourcePath>
      </roots>
      <additional jdk="1.7" sdk="android-23" />
    </jdk>