Put the summary of the bug you're having here
What I expected to happen was...:
Describe what you thought should happen here
What actually happened was...:
Describe what happened here
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ..
---- Minecraft Crash Report ----
// I blame Dinnerbone.
Time: 11/4/14 4:56 PM
Description: Registering texture
bqr: Unable to fit: carrots_stage_1 - size: 256x256 - Maybe try a lowerresolution resourcepack?
at bqo.c(SourceFile:56)
at bqs.b(SourceFile:203)
at bqs.a(SourceFile:90)
at bqy.a(SourceFile:72)
at bqy.a(SourceFile:61)
at bqy.a(SourceFile:52)
at azi.ad(SourceFile:422)
at azi.f(SourceFile:696)
at net.minecraft.client.main.Main.main(SourceFile:152)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at bqo.c(SourceFile:56)
at bqs.b(SourceFile:203)
at bqs.a(SourceFile:90)
-- Resource location being registered --
Details:
Resource location: minecraft:textures/atlas/blocks.png
Texture object class: bqs
Stacktrace:
at bqy.a(SourceFile:72)
at bqy.a(SourceFile:61)
at bqy.a(SourceFile:52)
at azi.ad(SourceFile:422)
-- Initialization --
Details:
Stacktrace:
at azi.f(SourceFile:696)
at net.minecraft.client.main.Main.main(SourceFile:152)
-- System Details --
Details:
Minecraft Version: 1.7.4
Operating System: Mac OS X (x86_64) version 10.6.8
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 243372496 bytes (232 MB) / 554496000 bytes (528 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
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: 1.7.4
LWJGL: 2.9.1
OpenGL: Intel GMA 950 OpenGL Engine GL version 1.4 APPLE-1.6.36, Intel Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because EXT_framebuffer_object is supported.
Anisotropic filtering is supported and maximum anisotropy is 4.
Shaders are available because ARB_shader_objects, ARB_vertex_shader, and ARB_fragment_shader are supported.
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: [LB Photo Realism x256 10]
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Anisotropic Filtering: Off (1)
Related issues
Comments

1.7.4 is no longer supported, you would need to test in 1.8 or the latest 1.8 snapshot.
Further, the error tells you exactly what the error is - you cannot run that texture pack for some reason, you would need to contact it's developer for any help.