Minecraft Forums

Since I installed Windows 7 everytime that i try to open the game i get this error in the log

Client> 2013-09-25 15:12:10 [CLIENT] [INFO] Setting user: Dakir
Client> 2013-09-25 15:12:10 [CLIENT] [INFO] (Session ID is ${auth_session})
Client> java.lang.NullPointerException
Client> at java.io.Reader.<init>(Unknown Source)
Client> at java.io.InputStreamReader.<init>(Unknown Source)
Client> at lb.<init>(SourceFile:15)
Client> at lb.<clinit>(SourceFile:9)
Client> at ku.g(SourceFile:37)
Client> at kr.g(SourceFile:15)
Client> at la.<clinit>(SourceFile:27)
Client> at atv.<init>(SourceFile:201)
Client> at net.minecraft.client.main.Main.main(SourceFile:83)
Client> Exception in thread "main" java.lang.ExceptionInInitializerError
Client> at bu.<clinit>(SourceFile:7)
Client> at yc.v(SourceFile:495)
Client> at la.a(SourceFile:139)
Client> at la.c(SourceFile:85)
Client> at yc.<clinit>(SourceFile:310)
Client> at aqz.<clinit>(SourceFile:362)
Client> at la.a(SourceFile:122)
Client> at la.<clinit>(SourceFile:55)
Client> at atv.<init>(SourceFile:201)
Client> at net.minecraft.client.main.Main.main(SourceFile:83)
Client> Caused by: java.lang.NullPointerException
Client> at java.io.Reader.<init>(Unknown Source)
Client> at java.io.InputStreamReader.<init>(Unknown Source)
Client> at org.apache.commons.io.IOUtils.readLines(IOUtils.java:986)
Client> at bv.<init>(SourceFile:26)
Client> at bv.<clinit>(SourceFile:19)
Client> ... 10 more
Game ended with bad state (exit code 1)
Deleting C:\Users\PaPeS!\AppData\Roaming\.minecraft\versions\1.6.4\1.6.4-natives-4272106890145
Couldn't delete C:\Users\PaPeS!\AppData\Roaming\.minecraft\versions\1.6.4\1.6.4-natives-4272106890145 - scheduling for deletion upon exit

Please, i really want to play, thanks

Minecraft doesn't like exclamation points. It can't open the files on disk under the directory "PaPeS!"

I cant change it, i need to reinstall the os to change that folder, im going to try it in a few days, thanks
If someone know another solution, please, post

You don't need to reinstall.
At most you need to create a new user profile.
There are instructions on line about how to rename a user directory by editing the registry (with the warning that some software may stop working)
Alternately you could try one of the schemes to use minecraft from a different folder than the default.