Class PLBuildVersion is implemented in both/Applications
<p>Why am I getting this?</p>

<blockquote>
  <p>objc[3993]: Class PLBuildVersion is implemented in both
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
  (0x112bb0910) and
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices
  (0x1129da210). One of the two will be used. Which one is undefined.
  2016-09-15 19:06:45.101896 Fly App[3993:92356] subsystem:
  com.apple.UIKit, category: HIDEventFiltered, enable_level: 0,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2,
  enable_private_data: 0 2016-09-15 19:06:45.108211 Fly App[3993:92356]
  subsystem: com.apple.UIKit, category: HIDEventIncoming, enable_level:
  0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2,
  enable_private_data: 0 2016-09-15 19:06:45.118565 Fly App[3993:92353]
  subsystem: com.apple.BaseBoard, category: MachPort, enable_level: 1,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0,
  enable_private_data: 0 2016-09-15 19:06:45.153130 Fly App[3993:92250]
  subsystem: com.apple.UIKit, category: StatusBar, enable_level: 0,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2,
  enable_private_data: 0 2016-09-15 19:06:45.537455 Fly App[3993:92250]
  subsystem: com.apple.BackBoardServices.fence, category: App,
  enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0,
  debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0,
  privacy_setting: 0, enable_private_data: 0</p>
</blockquote>

<p>Any reasons in particular? (It never happened before until today after updated xcode, and updated my project to swift 3)</p>

<p>Can someone please help?</p>

<p><strong>* Edited *</strong></p>

<p>I'm not convinced on the suggestions given by fellow developers so I've kept looking around for an answer. I've found a thread that says that the problem seems to have been cased by the Facebook SDK. However I haven't installed the Facebook SDK (Cocoapod) yet on my project, however I'm using the Import Social to share on Twitter, so I removed the Import Social and the ran my project again.</p>

<p>This time I didn't get the same Output on the debugger, I got this instead:</p>

<blockquote>
  <p>2016-09-16 11:57:41.393517 Fly App[1277:48009] subsystem:
  com.apple.UIKit, category: HIDEventFiltered, enable_level: 0,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2,
  enable_private_data: 0</p>
  
  <p>2016-09-16 11:57:41.396355 Fly App[1277:48009] subsystem:
  com.apple.UIKit, category: HIDEventIncoming, enable_level: 0,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2,
  enable_private_data: 0</p>
  
  <p>2016-09-16 11:57:41.411055 Fly App[1277:48006] subsystem:
  com.apple.BaseBoard, category: MachPort, enable_level: 1,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0,
  enable_private_data: 0</p>
  
  <p>2016-09-16 11:57:41.426085 Fly App[1277:47901] subsystem:
  com.apple.UIKit, category: StatusBar, enable_level: 0, persist_level:
  0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0,
  enable_oversize: 1, privacy_setting: 2, enable_private_data: 0</p>
  
  <p>2016-09-16 11:57:41.946193 Fly App[1277:47901] subsystem:
  com.apple.BackBoardServices.fence, category: App, enable_level: 1,
  persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0,
  generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0,
  enable_private_data: 0</p>
</blockquote>

<p>So the "Class PLBuildVersion is implemented in both" is gone:</p>

<blockquote>
  <p>objc[3993]: Class PLBuildVersion is implemented in both
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
  (0x112bb0910) and
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices
  (0x1129da210). One of the two will be used. Which one is undefined.</p>
</blockquote>

<p>I still don't know what all this means. Has anyone found something to solve this issue?</p>