java - 代号 "AWT-EventQueue-0"java.lang.UnsupportedClassVersionError : javafx/scene/media/MediaException has been compiled by a more recent version

Question

我正在创建一个新的 Codenameone 项目，当我尝试运行它时，它会抛出以下错误:

java.net.URISyntaxException: Illegal character in path at index 27: file:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar
    at java.net.URI$Parser.fail(URI.java:2848)
    at java.net.URI$Parser.checkChars(URI.java:3021)
    at java.net.URI$Parser.parseHierarchical(URI.java:3105)
    at java.net.URI$Parser.parse(URI.java:3053)
    at java.net.URI.<init>(URI.java:588)
    at java.net.URL.toURI(URL.java:953)
    at com.codename1.impl.javase.JavaFXLoader.addToClassPath(JavaFXLoader.java:296)
    at com.codename1.impl.javase.JavaFXLoader.addJavaFXToClassPath(JavaFXLoader.java:221)
    at com.codename1.impl.javase.JavaFXLoader.runWithJavaFX(JavaFXLoader.java:244)
    at com.codename1.impl.javase.JavaFXLoader.main(JavaFXLoader.java:323)
    at com.codename1.impl.javase.Executor.main(Executor.java:113)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.codename1.impl.javase.Simulator.main(Simulator.java:85)
Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedClassVersionError: javafx/scene/media/MediaException has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at com.codename1.impl.javase.JavaFXLoader$1.loadClass(JavaFXLoader.java:307)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at com.codename1.impl.ImplementationFactory.createImplementation(ImplementationFactory.java:69)
    at com.codename1.ui.Display.init(Display.java:489)
    at com.codename1.impl.javase.Executor$3.run(Executor.java:245)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
    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:74)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
    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)

我还注意到theme.res知道我在这里缺少什么吗？

Answer 1

故事:

这是创建项目时的一个愚蠢错误(不是那么错误，而是缺乏信息)。我不确定是否可以轻松修复项目而不重新创建它(我尝试从 IntelliJ 中的项目结构以及 build.xml 更改 Java 版本，但没有成功)，但如果您要创建一个新项目，请创建使用 java 版本 11 的项目(因为我不确定它是否适用于更高版本)。

原因是代号是用比我最初在新项目窗口中选择的版本更高的 Java 版本编译的。

解决方案:

在创建新的 Codenameone 项目时选择 java_version 11。