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Just get this error. I just bought minecraft few days ago and a friend recommend to install optifine. I played minecraft for few days and today when i wanted to play i get this error after pressing play.



---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 6/14/14 6:24 PM
Description: Initializing game

java.lang.VerifyError: Bad type on operand stack
Exception Details:
Location:
bro.<init>()V @9: invokespecial
Reason:
Type 'bkz' (current frame, stack[1]) is not assignable to 'bkd'
Current Frame:
bci: @9
flags: { flagThisUninit }
locals: { uninitializedThis }
stack: { uninitializedThis, 'bkz', float }
Bytecode:
0000000: 2abb 000a 59b7 0017 0cb7 001a 2a2a b400
0000010: 15c0 000a b600 18b5 0014 b1

at bpz.<init>(SourceFile:84)
at bpz.<clinit>(SourceFile:37)
at ban.ag(SourceFile:401)
at ban.f(SourceFile:713)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)


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

-- Head --
Stacktrace:
at bpz.<init>(SourceFile:84)
at bpz.<clinit>(SourceFile:37)
at ban.ag(SourceFile:401)

-- Initialization --
Details:
Stacktrace:
at ban.f(SourceFile:713)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
Minecraft Version: 1.7.9
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 69577112 bytes (66 MB) / 140509184 bytes (134 MB) up to 954728448 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.7.9-OptiFine_HD_U_D2
LWJGL: 2.9.1
OpenGL: GeForce GT 640/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)