Minecraft Forums

Please, Help! Here is the crash report:

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 10/07/16 08:44
Description: Initializing game

java.lang.NoSuchFieldError: fastMath
at net.minecraft.client.settings.GameSettings.loadOfOptions(GameSettings.java:2838)
at net.minecraft.client.settings.GameSettings.func_74300_a(GameSettings.java:2361)
at net.minecraft.client.settings.GameSettings.<init>(GameSettings.java:378)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:378)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Stacktrace:
at net.minecraft.client.settings.GameSettings.loadOfOptions(GameSettings.java:2838)
at net.minecraft.client.settings.GameSettings.func_74300_a(GameSettings.java:2361)
at net.minecraft.client.settings.GameSettings.<init>(GameSettings.java:378)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:378)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 299385064 bytes (285 MB) / 601882624 bytes (574 MB) up to 3817865216 bytes (3641 MB)
JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4096m -Xms256m -XX:PermSize=256m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML:
Launched Version: 1.7.10-Forge10.13.4.1614-1.7.10
LWJGL: 2.9.1
OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
GL Caps:
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: ~~ERROR~~ NullPointerException: null
Current Language: ~~ERROR~~ NullPointerException: null
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: ~~ERROR~~ NullPointerException: null

Try re-instaling the .minecraft folder which is found in %appdata% (accessed by using START + R typing in %appdata%). This will start Minecraftall over again clean and fresh, then after that install the version of Minecraft you want to play (In Minecraft Launcher) and then Install Optifine with it.

Hope this helped!