UDJ won't open

gistfile1.txt

Process:         UDJ [91996]
Path:            /Users/USER/*/UDJ.app/Contents/MacOS/UDJ
Identifier:      UDJ
Version:         0.6.2 (UDJ 0.6.2)
Code Type:       X86-64 (Native)
Parent Process:  launchd [122]
User ID:         501

Date/Time:       2012-10-15 23:10:24.949 -0500
OS Version:      Mac OS X 10.8.2 (12C54)
Report Version:  10

Interval Since Last Report:          565053 sec
Crashes Since Last Report:           56
Per-App Crashes Since Last Report:   4
Anonymous UUID:                      67C37DF2-D875-1F58-25D2-6936C726B5F4

Crashed Thread:  0

Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000

Application Specific Information:
dyld: launch, loading dependent libraries

Dyld Error Message:
  Library not loaded: /usr/local/lib/libpng15.15.dylib
  Referenced from: /usr/local/lib/QtGui.framework/Versions/4/QtGui
  Reason: image not found

Binary Images:
       0x102e81000 -        0x102efefff + (0.6.2 - UDJ 0.6.2) <60EC7443-F47C-3A3A-B0E7-D62094C9F182> /Users/USER/*/UDJ.app/Contents/MacOS/UDJ
       0x102f61000 -        0x10386bff7 +QtGui (4.8.3) <89B1687E-D740-36F9-BDDF-F2997ADAD410> /usr/local/lib/QtGui.framework/Versions/4/QtGui
       0x103ae0000 -        0x103b1ffff +QtXml (4.8.3) <7823F62D-617D-3433-80BD-8F27379B8E58> /usr/local/lib/QtXml.framework/Versions/4/QtXml
       0x103b3e000 -        0x103b6efff +QtSql (4.8.3) <1D76A842-F3D6-384B-AC34-EB293EBDDE87> /usr/local/lib/QtSql.framework/Versions/4/QtSql
       0x103b87000 -        0x103ca7ff7 +QtNetwork (4.8.3) <8CC0BD9C-F7DF-3ABC-B627-74E89F93958D> /usr/local/lib/QtNetwork.framework/Versions/4/QtNetwork
       0x103d03000 -        0x103f8efff +QtCore (4.8.3) <AF5C1CEA-EE0A-3FD1-AB2F-D2160DD88D78> /usr/local/lib/QtCore.framework/Versions/4/QtCore
       0x104021000 -        0x10405fff7 +phonon (4.4) <C021A9F1-F845-3BCE-8F01-F001CAD9B2A1> /usr/local/lib/phonon.framework/Versions/4/phonon
       0x104087000 -        0x104116fff +libtag.1.12.0.dylib (0) <EC0CE854-AE8F-36AA-9F43-75407DEEDC9D> /usr/local/lib/libtag.1.12.0.dylib
    0x7fff62a81000 -     0x7fff62ab593f  dyld (210.2.3) <A40597AA-5529-3337-8C09-D8A014EB1578> /usr/lib/dyld
    0x7fff86a4b000 -     0x7fff86a4cff7  libSystem.B.dylib (169.3) <365477AB-D641-389D-B8F4-A1FAE9657EEE> /usr/lib/libSystem.B.dylib
    0x7fff8b8c2000 -     0x7fff8b8c2fff  com.apple.Carbon (154 - 155) <372716D2-6FA1-3611-8501-3DD1D4A6E8C8> /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
    0x7fff8cd6c000 -     0x7fff8d999ff7  com.apple.AppKit (6.8 - 1187.34) <1FF64844-EB62-3F96-AED7-6525B7CCEC23> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
    0x7fff8e113000 -     0x7fff8e125ff7  libz.1.dylib (43) <2A1551E8-A272-3DE5-B692-955974FE1416> /usr/lib/libz.1.dylib
    0x7fff8e149000 -     0x7fff8e1b2fff  libstdc++.6.dylib (56) <EAA2B53E-EADE-39CF-A0EF-FB9D4940672A> /usr/lib/libstdc++.6.dylib

Model: MacBookAir5,2, BootROM MBA51.00EF.B01, 2 processors, Intel Core i7, 2 GHz, 8 GB, SMC 2.5f7
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 512 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434353153364D465238412D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434353153364D465238412D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xE9), Broadcom BCM43xx 1.0 (5.106.98.81.22)
Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM256E, 251 GB
USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1d100000 / 2
USB Device: hub_device, 0x0424  (SMSC), 0x2513, 0x1d180000 / 3
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x024c, 0x1d182000 / 6
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8404, 0x1d183000 / 5
USB Device: BRCM20702 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x1d181000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821f, 0x1d181300 / 9
USB Device: hub_device, 0x8087  (Intel Corporation), 0x0024, 0x1a100000 / 2
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8510, 0x1a110000 / 3