Is there a specific place I have to place the beta launcher? (Mac)

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natchu96

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Jul 29, 2019
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I keep getting

java.lang.ClassNotFoundException: net.minecraft.client.Minecraft

from the launcher console. I'm still trying to figure out how to get this thing to work on my mac, so any ideas?
 
Hello Natchu96.

What version of OSX are you using? Also can you post up a full error log for me please.
 
It claims to be a 10.7.5 (Lion, I guess) Does this forum have spoiler tags?

Code:
loading modpack information...
http://repo.creeperhost.net/direct/FTB2/bedb3648282cd79042acc30bd30a8a70/modpacks.xml
http://repo.creeperhost.net/direct/FTB2/bedb3648282cd79042acc30bd30a8a70/logo_ftb.png
http://repo.creeperhost.net/direct/FTB2/bedb3648282cd79042acc30bd30a8a70/FTBBetaA.zip
http://repo.creeperhost.net/direct/FTB2/bedb3648282cd79042acc30bd30a8a70/splash_FTB.png
adding pack 0
Logging in...
 
Login complete.
Loading jars...
Loading URL: file:/Users/NathanaelChu/Desktop/Nathanael%20Chu/Media/minecraft/FTB/FTB%20Mod%20Pack/FTBBETAA/.minecraft/bin/minecraftforge.zip
Loading URL: file:/Users/NathanaelChu/Desktop/Nathanael%20Chu/Media/minecraft/FTB/FTB%20Mod%20Pack/FTBBETAA/.minecraft/bin/minecraft.jar
Loading URL: file:/Users/NathanaelChu/Desktop/Nathanael%20Chu/Media/minecraft/FTB/FTB%20Mod%20Pack/FTBBETAA/.minecraft/bin/lwjgl.jar
Loading URL: file:/Users/NathanaelChu/Desktop/Nathanael%20Chu/Media/minecraft/FTB/FTB%20Mod%20Pack/FTBBETAA/.minecraft/bin/lwjgl_util.jar
Loading URL: file:/Users/NathanaelChu/Desktop/Nathanael%20Chu/Media/minecraft/FTB/FTB%20Mod%20Pack/FTBBETAA/.minecraft/bin/jinput.jar
Loading natives...
java.lang.ClassNotFoundException: net.minecraft.client.Minecraft
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at net.ftb.gui.LaunchFrame.launchMinecraft(LaunchFrame.java:837)
    at net.ftb.gui.LaunchFrame.runGameUpdater(LaunchFrame.java:715)
    at net.ftb.gui.LaunchFrame$8.done(LaunchFrame.java:645)
    at javax.swing.SwingWorker$5.run(SwingWorker.java:737)
    at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(SwingWorker.java:832)
    at sun.swing.AccumulativeRunnable.run(AccumulativeRunnable.java:112)
    at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(SwingWorker.java:842)
    at javax.swing.Timer.fireActionPerformed(Timer.java:312)
    at javax.swing.Timer$DoPostEvent.run(Timer.java:244)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
    at java.awt.EventQueue.access$200(EventQueue.java:103)
    at java.awt.EventQueue$3.run(EventQueue.java:682)
    at java.awt.EventQueue$3.run(EventQueue.java:680)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
 
Yes if you're using mac you have to
cd /directory/where/its/located
then
java -jar launcher.jar
in terminal
. . . still getting that Noclass error :(

EDIT: Now it's this:
Code:
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: kr
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    at net.ftb.gui.LaunchFrame.launchMinecraft(LaunchFrame.java:621)
    at net.ftb.gui.LaunchFrame.runGameUpdater(LaunchFrame.java:505)
    at net.ftb.gui.LaunchFrame$8.done(LaunchFrame.java:417)
    at javax.swing.SwingWorker$5.run(SwingWorker.java:737)
    at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(SwingWorker.java:832)
    at sun.swing.AccumulativeRunnable.run(AccumulativeRunnable.java:112)
    at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(SwingWorker.java:842)
    at javax.swing.Timer.fireActionPerformed(Timer.java:312)
    at javax.swing.Timer$DoPostEvent.run(Timer.java:244)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
    at java.awt.EventQueue.access$200(EventQueue.java:103)
    at java.awt.EventQueue$3.run(EventQueue.java:682)
    at java.awt.EventQueue$3.run(EventQueue.java:680)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
Caused by: java.lang.ClassNotFoundException: kr
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    ... 34 more
 
Quite the bump here . . .

Okay, so now I can at least get it to attempt a launch of minecraft after some trial and error. But the window remains blacked out.

The most I got was the launcher log:

Code:
0:47:46 [INFO] net.ftb.gui.LaunchFrame.main:127 FTBLaunch starting up (version 0.3.1)
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:131 Now is: 2012-11-06 10:47:46
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:132 Java version: 1.7.0_09
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:133 Java vendor: Oracle Corporation
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:134 Java home: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:135 Java specification: Java Virtual Machine Specification version: 1.7 by Oracle Corporation
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:137 Java vm: Java HotSpot(TM) 64-Bit Server VM version: 23.5-b02 by Oracle Corporation
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:139 OS: x86_64 Mac OS X 10.7.5
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:140 Working directory: /Users/NathanaelChu/Library/Application Support/minecraft
10:47:46 [INFO] net.ftb.gui.LaunchFrame.main:142 Max Memory: 1187512320
10:47:48 [INFO] net.ftb.gui.LaunchFrame.getCreeperhostLink:497 http://repo.creeperhost.net/direct/FTB2/5f514b82b3c84afe0f40eff0019f9282/release.xml
10:47:48 [INFO] net.ftb.gui.panes.OptionsPane.loadSettings:157 NONE
10:47:49 [INFO] net.ftb.workers.ModpackLoader.run:27 loading modpack information...
10:47:49 [INFO] net.ftb.gui.LaunchFrame.getCreeperhostLink:497 http://repo.creeperhost.net/direct/FTB2/5f514b82b3c84afe0f40eff0019f9282/modpacks.xml
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: [Fatal Error] :1:102: The reference to entity "ctype" must end with the ';' delimiter.
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 102; The reference to entity "ctype" must end with the ';' delimiter.
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:251)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:300)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at net.ftb.util.AppUtils.downloadXML(AppUtils.java:68)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at net.ftb.updater.UpdateChecker.loadInfo(UpdateChecker.java:46)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at net.ftb.updater.UpdateChecker.<init>(UpdateChecker.java:27)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at net.ftb.gui.LaunchFrame$1.run(LaunchFrame.java:199)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventQueue.access$200(EventQueue.java:103)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventQueue$3.run(EventQueue.java:682)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventQueue$3.run(EventQueue.java:680)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.security.AccessController.doPrivileged(Native Method)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
10:47:49 [ERROR] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
10:47:50 [INFO] net.ftb.gui.LaunchFrame.getCreeperhostLink:497 http://repo.creeperhost.net/direct/FTB2/5f514b82b3c84afe0f40eff0019f9282/logo_ftb.png
10:47:51 [INFO] net.ftb.gui.LaunchFrame.getCreeperhostLink:497 http://repo.creeperhost.net/direct/FTB2/5f514b82b3c84afe0f40eff0019f9282/FTBBetaA.zip
10:47:51 [INFO] net.ftb.gui.LaunchFrame.getCreeperhostLink:497 http://repo.creeperhost.net/direct/FTB2/5f514b82b3c84afe0f40eff0019f9282/splash_FTB.png
10:47:52 [INFO] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: Adding pack 0
10:48:04 [INFO] net.ftb.gui.LaunchFrame.doLogin:377 Logging in...
10:48:06 [INFO] net.ftb.gui.LaunchFrame$8.done:427 Login complete.
10:48:07 [INFO] net.ftb.gui.LaunchFrame.initializeMods:666 FTBBETAA
10:48:07 [INFO] net.ftb.gui.LauncherConsole$OutputOverride.write:65 From Console: File found, up to date.
10:48:07 [INFO] net.ftb.gui.LaunchFrame.installMods:572 dirs mk'd
10:48:07 [INFO] net.ftb.mclauncher.MinecraftLauncher.setMemory:106 Setting MinMemory to 256
10:48:07 [INFO] net.ftb.mclauncher.MinecraftLauncher.setMemory:108 Setting MaxMemory to 1024
10:48:07 [INFO] net.ftb.gui.LaunchFrame.launchMinecraft:557 MinecraftLauncher said: 1
 
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