Something wrong with the launcher?

When I started up the Minecraft Launcher, this message appeared.
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Bootstrap (v5)
Current time is Jul 30, 2014 9:58:29 PM
System.getProperty('os.name') == 'Windows 8'
System.getProperty('os.version') == '6.2'
System.getProperty('os.arch') == 'x86'
System.getProperty('java.version') == '1.7.0_65'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '32'

Found cached update
Renaming C:\Users\pc\AppData\Roaming\.minecraft\launcher.pack.lzma.new to C:\Users\pc\AppData\Roaming\.minecraft\launcher.pack.lzma
Renamed successfully.
Looking for update
Didn't find an update in time.
Reversing LZMA on C:\Users\pc\AppData\Roaming\.minecraft\launcher.pack.lzma to C:\Users\pc\AppData\Roaming\.minecraft\launcher.pack
Downloading: https://s3.amazonaws.com/Minecraft.Down ... .pack.lzma
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to un-lzma: LZMA.LzmaException: LZMA : Data Error
at net.minecraft.bootstrap.Bootstrap.unpack(Bootstrap.java:146)
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:123)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)


Please fix the error and restart.
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Please help!