错误信息：
Process: Versions [20146]
Path: /Applications/Versions.app/Contents/MacOS/Versions
Identifier: com.blackpixel.versions
Version: 1.2.2 (1047)
Code Type: X86 (Native)
Parent Process: ??? [1]
Responsible: Versions [20146]
User ID: 501
Date/Time: 2014-10-11 16:22:32.331 +0800
OS Version: Mac OS X 10.10 (14A343f)
Report Version: 11
Anonymous UUID: 46BC7AE4-53A4-F1B1-7EF9-3026666C5C81
Time Awake Since Boot: 110000 seconds
Crashed Thread: Unknown
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Backtrace not available
Unknown thread crashed with X86 Thread State (32-bit):
eax: 0x00000000 ebx: 0x99e08d1b ecx: 0xb019631c edx: 0x00000000
edi: 0xb0197000 esi: 0x00000006 ebp: 0xb0196338 esp: 0xb019631c
ss: 0x00000023 efl: 0x00000206 eip: 0x90bc669e cs: 0x0000000b
ds: 0x00000023 es: 0x00000023 fs: 0x00000023 gs: 0x0000000f
cr2: 0x07b0d000
Logical CPU: 0
Error Code: 0x00080148
Trap Number: 132
Binary images description not available
External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 1
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 53903
thread_create: 0
thread_set_state: 0
Model: Macmini6,2, BootROM MM61.0106.B03, 4 processors, Intel Core i7, 2.6 GHz, 4 GB, SMC 2.8f0
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A544632353636344A485A2D3147364D32
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1600 MHz, 0x802C, 0x384A544632353636344A485A2D3147364D32
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (7.15.124.12.4a1)
Bluetooth: Version 4.3.0b16 14705, 3 services, 17 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: APPLE SSD SM128E, 121.33 GB
Serial ATA Device: APPLE HDD HTS541010A9E662, 1 TB
USB Device: Hub
USB Device: Hub
USB Device: Hub
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: IR Receiver
USB Device: USB Optical Mouse
USB Device: USB Keykoard
Thunderbolt Bus: Mac mini, Apple Inc., 23.4
解决办法：
临时解决方案如下：
- 在文本编辑器中打开 ~/.subversion/servers
- 在 [global] 下添加该行：
http-library = serf