Put the summary of the bug you're having here

*What I expected to happen was minecraft would launch and everything would be fine.

*What actually happened was
I opened the launcher, and hit the play button. It went to the regular mojang loading screen, then it just went back to the crash log.

Steps to Reproduce:
1. There are no steps. It just failed to launch.
2. ...

here is the crash log:

---- Minecraft Crash Report ----
// Why did you do that?

Time: 3/5/16 1:23 PM
Description: Initializing game

bvf: Unable to fit: minecraft:blocks/grass_side_overlay - size: 512x512 - Maybe try a lowerresolution resourcepack?
at bve.c(SourceFile:58)
at bvg.b(SourceFile:137)
at bvg.a(SourceFile:76)
at bxr.m(SourceFile:727)
at bxr.a(SourceFile:172)
at bxs.a(SourceFile:23)
at bwl.a(SourceFile:100)
at bcf.an(SourceFile:513)
at bcf.a(SourceFile:377)
at net.minecraft.client.main.Main.main(SourceFile:124)

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

– Head –
Stacktrace:
at bve.c(SourceFile:58)
at bvg.b(SourceFile:137)
at bvg.a(SourceFile:76)
at bxr.m(SourceFile:727)
at bxr.a(SourceFile:172)
at bxs.a(SourceFile:23)
at bwl.a(SourceFile:100)
at bcf.an(SourceFile:513)

– Initialization –
Details:
Stacktrace:
at bcf.a(SourceFile:377)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.9
Operating System: Mac OS X (x86_64) version 10.10.5
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 82666952 bytes (78 MB) / 180289536 bytes (171 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.9
LWJGL: 2.9.2
OpenGL: Intel HD Graphics 3000 OpenGL Engine GL version 2.1 INTEL-10.0.35, Intel Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: PureBDcraft 512x MC19.zip
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-2557M CPU @ 1.70GHz