Minecraft Forums

I'm trying to downgrade minecraft back to 1.2.5 but I get an error

Here is the error: Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem.


--- BEGIN ERROR REPORT 7cf3a456 --------
Generated 10/09/12 5:49 PM
Minecraft: Minecraft 1.2.5
OS: Windows Vista (x86) version 6.0
Java: 1.6.0_24, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: GeForce 6150SE nForce 430/PCI/SSE2/3DNOW! version 2.1.2, NVIDIA Corporation
java.lang.NullPointerException
at java.io.Reader.<init>(Unknown Source)
at java.io.InputStreamReader.<init>(Unknown Source)
at adn.a(SourceFile:62)
at adn.a(SourceFile:99)
at net.minecraft.client.Minecraft.a(SourceFile:262)
at net.minecraft.client.Minecraft.run(SourceFile:657)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT c0eedc98 ----------

no

I downloaded a clean minecraft 1.2.5 jar

I tried using mcnostalgia.... It didnt work

That error is probably due to a 'bad' option in .minecraft/options.txt language is one that can cause this, simple thing is to rename the file (to keep your options), and then let minecraft generate a new default options.txt.

I have never changed the options.txt. I'll try anyway

You went backwards in versions. Options from a newer release that 1.2.5 does not understand (or option selections) can cause this problem.

Mojang should make the option processing more tolerant of things it doesn't understand and just ignore / reset those items to the default.
but they haven't

Ive fixed the problem: The memory reserved had to be 700mb or lower. dont know what that means