Minecraft Forums

Another Minecraft isn't launching thread. iMac running Mavericks, but the problem predated the OS upgrade. The error message is:

Bootstrap (v5)
Current time is Nov 5, 2013 8:24:45 PM
System.getProperty('os.name') == 'Mac OS X'
System.getProperty('os.version') == '10.9'
System.getProperty('os.arch') == 'x86_64'
System.getProperty('java.version') == '1.6.0_65'
System.getProperty('java.vendor') == 'Apple Inc.'
System.getProperty('sun.arch.data.model') == '64'

Looking for update
Downloading: https://s3.amazonaws...ncher.pack.lzma
Got reply in: 724ms
No update found.
Reversing LZMA on /Users/danandpam/Library/Application Support/minecraft/launcher.pack.lzma to /Users/danandpam/Library/Application Support/minecraft/launcher.pack
Unpacking /Users/danandpam/Library/Application Support/minecraft/launcher.pack to /Users/danandpam/Library/Application Support/minecraft/launcher.jar
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to un-pack200: java.io.FileNotFoundException: /Users/danandpam/Library/Application Support/minecraft/launcher.jar (No such file or directory)
at net.minecraft.bootstrap.Bootstrap.unpack(Bootstrap.java:159)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:123)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at apple.launcher.LaunchRunner.run(LaunchRunner.java:116)
at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:51)
at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)


Please fix the error and restart.


Tried deleting Minecraft/reinstalling and updating to current version of Java to no avail. I've created another user account, installed on that account and it works fine but don't want to keep switching between accounts just to play. The game had been working fine until sometime in the last month, so doesn't appear to be a hardware issue.

Any help would be appreciated

That appears to have done it.

Thanks for the help.