ここにある指示に従って、Raspberry PiにAlexaをセットアップしようとしています
しかし、クライアントの起動中に Java 例外が発生します ( mvn exec:exec)
以下は、実行時の端末出力mvn exec:execです。関連するすべてのスレッドを試しましたが、何も機能しませんでした。
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Alexa Voice Service Sample Java Client 20160207.3
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- exec-maven-plugin:1.2.1:exec (default-cli) @ sample-java-client ---
Exception in thread "main" java.lang.reflect.InvocationTargetException
at java.awt.EventQueue.invokeAndWait(EventQueue.java:1321)
at java.awt.EventQueue.invokeAndWait(EventQueue.java:1296)
at javax.swing.SwingUtilities.invokeAndWait(SwingUtilities.java:1348)
at com.amazon.alexa.avs.App.<init>(App.java:67)
at com.amazon.alexa.avs.App.<init>(App.java:53)
at com.amazon.alexa.avs.App.main(App.java:48)
Caused by: java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:204)
at java.awt.Window.<init>(Window.java:536)
at java.awt.Frame.<init>(Frame.java:420)
at java.awt.Frame.<init>(Frame.java:385)
at javax.swing.JFrame.<init>(JFrame.java:189)
at com.amazon.alexa.avs.ui.MainWindow.<init>(MainWindow.java:41)
at com.amazon.alexa.avs.App.createViews(App.java:91)
at com.amazon.alexa.avs.App.lambda$new$0(App.java:67)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
私も s を試しudo mvn -e installました。その場合、ビルドは成功しましたが、登録トークン付きの URL を含むポップアップが表示されません。