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paletapayasa
paletapayasa wrote ...

2018/9/23

Greenfoot not opening on Mac OS X?

paletapayasa paletapayasa

2018/9/23

#
I've been using Greenfoot with no issues for a few days now until earlier. I was working on a project when the application suddenly crashed, causing me to force-quit it. From that point on, whenever I try to reopen Greenfoot, the launch screen shows up with a blue loading bar at the bottom, but it never opens no matter how long I leave it alone for. I've tried deleting and reinstalling the application but I still have the same issue. Since I need the application for schoolwork, any sort of immediate help would be greatly appreciated. Here's some info: - Running Mac OS X 10.12.6 - Running Greenfoot 3.5.1 I can't seem to find the debug code, so if anyone is also willing to help me out in that aspect as well it'd make my life much easier.
davmac davmac

2018/9/23

#
Instructions for finding the debug log are on the support page:
For Mac OS, "/Users/your-username/Library/Preferences/org.greenfoot/greenfoot-debuglog.txt" and see this page.
You probably will need to follow the instructions in the link to make your Library folder visible.
paletapayasa paletapayasa

2018/9/23

#
Thank you, just found it. Here's the debug log: Greenfoot run started: Sat Sep 22 23:33:56 PDT 2018 Greenfoot version: 3.5.1 Java version 1.8.0_181 Virtual machine: Java HotSpot(TM) 64-Bit Server VM 25.181-b13 (Oracle Corporation) Running on: Mac OS X 10.12.6 (x86_64) Java Home: /Users/name/Desktop/Greenfoot.app/Contents/JDK/Home/jre ---- Disabling App Nap Opening project: /Users/name/Desktop/Game Practice/GameBasics/GameProjectoooo Exception in thread "JavaFX Application Thread" java.lang.NoClassDefFoundError: Lovai at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getDeclaredConstructors(Class.java:2020) at bluej.utility.JavaReflective.getDeclaredConstructors(JavaReflective.java:364) at greenfoot.guifx.GreenfootStage.hasNoArgConstructor(GreenfootStage.java:1375) at greenfoot.guifx.GreenfootStage.showProject(GreenfootStage.java:478) at greenfoot.guifx.GreenfootStage.<init>(GreenfootStage.java:395) at greenfoot.guifx.GreenfootStage.makeStage(GreenfootStage.java:597) at greenfoot.vmcomm.GreenfootDebugHandler.addDebuggerListener(GreenfootDebugHandler.java:141) at greenfoot.core.ProjectManager.launchProject(ProjectManager.java:163) at greenfoot.guifx.GreenfootGuiHandler.tryOpen(GreenfootGuiHandler.java:47) at bluej.Main.processArgs(Main.java:176) at bluej.Main.lambda$null$0(Main.java:124) at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) Caused by: java.lang.ClassNotFoundException: Lovai at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 17 more 1537684443820: Listening for JDWP connection on address: 127.0.0.1:51055 Connected to debug VM via dt_socket transport... Communication with debug VM fully established.
davmac davmac

2018/9/24

#
Thanks. Looks like there's a missing class or other class-related problem. This is really a bug in Greenfoot (and we'll fix). For now, you should be able to resolve it by deleting all the *.class files in the project (/Users/name/Desktop/Game Practice/GameBasics/GameProjectoooo).
paletapayasa paletapayasa

2018/9/24

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Thank you so much, I was finally able to enter the app!
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