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Ello, I was making a small harmless minecraft private modpack (consisting of Optifie, invtweaks and others to come but, I tried getting InvTweaks to work, I followed the instructions on installing InvTweaks and I got this crash message:

[spoiler][code] ---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 6/28/13 7:11 PM
Description: Failed to start game

java.lang.NullPointerException
at net.minecraft.client.gui.FontRenderer.getFontTexturePack(FontRenderer.java:1144)
at net.minecraft.client.gui.FontRenderer.func_98306_d(FontRenderer.java:222)
at net.minecraft.client.gui.FontRenderer.func_98304_a(FontRenderer.java:150)
at net.minecraft.client.gui.FontRenderer.<init>(FontRenderer.java:112)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:408)
at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:733)
at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_05, Oracle Corporation
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 460811440 bytes (439 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML:
LWJGL: 2.4.2
OpenGL: GeForce GTX 560M/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: ConquestDark_V1.0.zip
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null [/code][/spoiler]