Crosswalk 无法解析配置“:_armv7DebugCompile”的所有依赖项

直到几天前我使用Crosswalk 18+成功构建了我的应用程序，今天我遇到了这个错误：

* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all dependencies for configuration ':_armv7DebugCompile'.
   > Could not resolve org.xwalk:xwalk_core_library:18+.
     Required by:
         :android:unspecified
      > Failed to list versions for org.xwalk:xwalk_core_library.
         > Unable to load Maven meta-data from https://repo1.maven.org/maven2/org/xwalk/xwalk_core_library/maven-metadata.xml.
            > Could not GET 'https://repo1.maven.org/maven2/org/xwalk/xwalk_core_library/maven-metadata.xml'.
               > peer not authenticated
      > Failed to list versions for org.xwalk:xwalk_core_library.
         > Unable to load Maven meta-data from https://download.01.org/crosswalk/releases/crosswalk/android/maven2/org/xwalk/xwalk_core_library/maven-metadata.xml.
            > Could not GET 'https://download.01.org/crosswalk/releases/crosswalk/android/maven2/org/xwalk/xwalk_core_library/maven-metadata.xml'.
               > peer not authenticated

我见过另一个解决方案：无法解析配置“:_armv7DebugCompile”的所有依赖项

我已经从 SDK 安装了“Android 支持存储库”和“Android 支持库”，我还进行了所有可用更新

Java版本：

java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)

https://repo1.maven.org/maven2/org/xwalk/xwalk_core_library/maven-metadata.xml= 没有为我找到

Cordova config.xml（部分）：

<preference name="xwalkVersion" value="18+" />
<preference name="android-targetSdkVersion" value="19"/>

谢谢

UPDATE

由于某种原因 org.xwalk:xwalk_core_library_beta:18+ 对我不起作用（同样的错误）：

<preference name="xwalkVersion" value="org.xwalk:xwalk_core_library_beta:18+" />

我在maven repo上检查了最新版本：https://download.01.org/crosswalk/releases/crosswalk/android/maven2/org/xwalk/xwalk_core_library_beta/maven-metadata.xml

我使用了特定版本（最新 18+）：

<preference name="xwalkVersion" value="org.xwalk:xwalk_core_library_beta:18.48.477.11" />

这对我有用。