Minecraft Forums

I start up minecraft and this message pops up...



Bootstrap (v5)
Current time is Apr 17, 2014 9:37:30 PM
System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_01'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Got reply in: 866ms
Downloaded 997.4kb in 1s at 787.9kb/s
Renaming C:\Minecraft\launcher.pack.lzma.new to C:\Minecraft\launcher.pack.lzma
Renamed successfully.
Reversing LZMA on C:\Minecraft\launcher.pack.lzma to C:\Minecraft\launcher.pack
Unpacking C:\Minecraft\launcher.pack to C:\Minecraft\launcher.jar
FATAL ERROR: java.lang.ExceptionInInitializerError
at com.sun.java.util.jar.pack.TLGlobals.<init>(Unknown Source)
at com.sun.java.util.jar.pack.UnpackerImpl.<init>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at java.util.jar.Pack200.newInstance(Unknown Source)
at java.util.jar.Pack200.newUnpacker(Unknown Source)
at net.minecraft.bootstrap.Bootstrap.unpack(Bootstrap.java:157)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:123)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)
Caused by: java.lang.RuntimeException: intrinsic.properties cannot be loaded
at com.sun.java.util.jar.pack.PropMap.<clinit>(Unknown Source)
... 13 more


Please fix the error and restart.



Please HELP!
And thx

Hmm... that may have happened to me when I was editing some MC files. (Mods, weird profiles, etc.) Try deleting the .mine craft and reinstalling, I guess
FYI
The .mnecraft flder
C:/users/"your user"/appdata/roaming/.minecraftOh, I think the new instance class lines are a mod with broken class files. Could be wrong.