title: Xcode crashes when I try to create a outlet from a UIWebview to Header file
body: <p>I am currently using Xcode 5 on my Macbook Pro which is running OSX Yosemite. I am trying to create an outlet from a UIWebview to a header file. When I let go of my mouse to create the connection, Xcode freezes and crashes. This is repeatedly happening no matter what I have done. I have tried restarting Xcode and my Macbook. Does anyone else have this problem or know how to fix it? Thanks! </p>
  
  <p>I have added the logs from the crash(I couldn't include the backtrace because it exceeded the maximum characters in the body)</p>
  
  <pre><code>    Process:               Xcode [1631]
  Path:                  /Applications/Xcode.app/Contents/MacOS/Xcode
  Identifier:            com.apple.dt.Xcode
  Version:               5.1.1 (5085)
  Build Info:            IDEFrameworks-5085000000000000~10
  App Item ID:           497799835
  App External ID:       520942841
  Code Type:             X86-64 (Native)
  Parent Process:        ??? [1]
  Responsible:           Xcode [1631]
  User ID:               502
  
  Date/Time:             2014-06-26 21:50:34.616 -0400
  OS Version:            Mac OS X 10.10 (14A238x)
  Report Version:        11
  Anonymous UUID:        6D3E70F1-91EB-79A5-FAB6-2929D7E8A66F
  
  Sleep/Wake UUID:       C86C5452-A655-43AA-9D11-92BE0F080F3E
  
  Time Awake Since Boot: 11000 seconds
  Time Since Wake:       510 seconds
  
  Crashed Thread:        0  Dispatch queue: com.apple.main-thread
  
  Exception Type:        EXC_CRASH (SIGABRT)
  Exception Codes:       0x0000000000000000, 0x0000000000000000
  
  Application Specific Information:
  ProductBuildVersion: 5B1008
  ASSERTION FAILURE in /SourceCache/DVTFrameworks/DVTFrameworks-5074/DVTKit/ViewControllers/DVTControllerContentView.m:280
  Details:  &lt;DVTControllerContentView: 0x7fe687d170a0&gt; can only have one subview, its contentView
  Object:   &lt;DVTControllerContentView: 0x7fe687d170a0&gt;
  Method:   -addSubview:
  Thread:   &lt;NSThread: 0x7fe682d086a0&gt;{number = 1, name = main}
  Hints:   None
  
  
  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: 4286
      thread_create: 0
      thread_set_state: 0
  
  VM Region Summary:
  ReadOnly portion of Libraries: Total=404.2M resident=289.4M(72%) swapped_out_or_unallocated=114.9M(28%)
  Writable regions: Total=1.2G written=71.9M(6%) resident=141.4M(11%) swapped_out=0K(0%) unallocated=1.1G(89%)
  
  REGION TYPE                        VIRTUAL
  ===========                        =======
  Activity Tracing                     2048K
  CG backing stores                    4084K
  CG image                             19.3M
  CG raster data                         92K
  CG shared images                     1324K
  CoreAnimation                         880K
  CoreAnimation (reserved)               12K        reserved VM address space (unallocated)
  CoreData Object IDs                  4100K
  CoreImage                             264K
  CoreUI image data                     180K
  Dispatch continuations               4096K
  Foundation                             16K
  IOKit                                13.8M
  IOKit (reserved)                        4K        reserved VM address space (unallocated)
  Image IO                              700K
  JS JIT generated code                   8K
  JS JIT generated code (reserved)      1.0G        reserved VM address space (unallocated)
  Kernel Alloc Once                       8K
  MALLOC                              114.7M
  MALLOC (admin)                         32K
  Memory Tag 242                         12K
  Memory Tag 249                        156K
  Memory Tag 251                         80K
  OpenCL                                 16K
  OpenGL GLSL                           256K
  SQLite page cache                    4352K
  STACK GUARD                          56.1M
  Stack                                15.7M
  VM_ALLOCATE                          16.9M
  WebKit Malloc                         464K
  __DATA                               60.1M
  __GLSLBUILTINS                       2588K
  __IMAGE                               528K
  __LINKEDIT                          100.5M
  __TEXT                              304.0M
  __UNICODE                             544K
  mapped file                         152.6M
  shared memory                          68K
  ===========                        =======
  TOTAL                                 1.9G
  TOTAL, minus reserved VM space      879.9M
  
  
  Model: MacBookPro7,1, BootROM MBP71.0039.B0E, 2 processors, Intel Core 2 Duo, 2.4 GHz, 8 GB, SMC 1.62f7
  Graphics: NVIDIA GeForce 320M, NVIDIA GeForce 320M, PCI, 256 MB
  Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x859B, 0x435435313236344243313036372E4D313646
  Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x859B, 0x435435313236344243313036372E4D313646
  AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.100.24)
  Bluetooth: Version 4.3.0d49 14130, 3 services, 16 devices, 1 incoming serial ports
  Network Service: Wi-Fi, AirPort, en1
  Serial ATA Device: Hitachi HTS545032B9SA02, 320.07 GB
  Serial ATA Device: HL-DT-ST DVDRW  GS23N
  USB Device: Built-in iSight
  USB Device: Internal Memory Card Reader
  USB Device: BRCM2046 Hub
  USB Device: Bluetooth USB Host Controller
  USB Device: IR Receiver
  USB Device: Apple Internal Keyboard / Trackpad
  Thunderbolt Bus: 
  </code></pre>