Class PLBuildVersion is implemented in both frameworks

Question

iOS 10 / Xcode 8 GM build getting the below, never had it before on Xcode 7. Any ideas?

objc[25161]: Class PLBuildVersion is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices (0x12049a910) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices (0x1202c4210). One of the two will be used. Which one is undefined.

(NOTE: Only seems to happen in simulator, does not appear on real device).

Are you using Fabric or other Twitter 3rd library in your project? — Kevin, Sep 19 '16 at 08:53
I have the same error in the release version and yes, i'm using Fabric in my project. @noellee — Zac, Sep 19 '16 at 09:32
Have the same problem, not using Twitter or Fabric. Interestingly, when I search for PLBuildVersion in the project (Find>Text>Containing) I get no result! No file, no import, no comment, nothing! — turingtested, Sep 25 '16 at 14:25
The warning disappeared after I commented this `PHAsset.fetchAssetsWithALAssetURLs` out. I guess the bug is on Apple's side. — 0101, Sep 26 '16 at 11:43
@noellee like Zac I am using fabric in my project and I also have the same error — user1019042, Sep 27 '16 at 20:29
I can get this warning only when I use Simulator, In device it's working fine. I am using Xcode 8.2.1 and IOS 10.3.1 — Mihir Oza, Apr 19 '17 at 14:01

score 145 · Answer 1 · edited Jun 20 '20 at 09:12

145

Main Idea

Main idea is simple:

If your app (or dependencies, such as Pods) uses framework, that uses explicit (or implicit) PhotoLibraryServices.framework or AssetsLibraryServices.framework as dependency, Xcode warns you (even if you are using only one of them). It might be Photos/PhotosUI.framework or AssetsLibrary.framework, or another (I don't have full list of dependencies, but it is possible).

What is the problem?

Class with name PLBuildVersion is defined in both PhotoLibraryServices.framework and AssetsLibraryServices.framework. Class name is unique in Objective-C (you can't define 2 classes with same name), so it is undefined which one will be used in runtime.

However, I think that it will not be a problem, because both classes have same methods and fields (checked this with disassembler) and I guess that both were compiled from the same source.

Radar is already sent.

edited Jun 20 '20 at 09:12

Community

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answered Sep 19 '16 at 21:18

Roman Ermolov

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@Kevin not yet. – Roman Ermolov Oct 17 '16 at 11:12
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the warning message are still there. – Faiz Fareed Nov 07 '16 at 19:40
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I found that if I use Webview in one VC, I got this type of warning message in debug window when the VC is shown. I use Xcode 8.1, swift 3. – David.Chu.ca Nov 09 '16 at 22:19
Just got this issue with Xcode 8.1, was working yesterday before update :/ – David Nov 17 '16 at 00:09
So is that a bug about linker? – Itachi Nov 22 '16 at 03:29
Still an issue in Xcode 8.2. Only when the webview is used. – Andr3s4n Jan 03 '17 at 13:46
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i m using xcode 8.2 and i have no any photolibary use in my project and i still get this warning. – Himanshu Moradiya Mar 17 '17 at 04:39
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Is it me only or the viewcontroller presentation becomes slow, which is being presented and has this warning message??? – nr5 May 10 '17 at 14:52
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I'm getting this message when setting a TextLabel.attributedText = try! NSAttributedString(data: stringToBeConverted.data(using: String.Encoding.unicode, allowLossyConversion: true)!, options: [ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil). I don't have any Photolibrary. And the view controller presentation becomes slow. – Jeremias Serafim May 14 '17 at 23:15
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I am also getting this warning when I set `.attributedText`. I am not accessing camera or photos. This warning also causes serious lag for the View Controller to load, even though there are no time intensive tasks involved (no network access, no file i/o, etc.). – R Moyer Jun 22 '17 at 15:58

score 53 · Answer 2 · answered Nov 03 '16 at 06:21

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As per answer from Apple employee on Apple's Developer Forum:

You don't control either of the class sources listed, so there isn't anything you can or should do – aside from Reporting a Bug.

answered Nov 03 '16 at 06:21

Raphael Oliveira

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I guess that is that. – Fattie May 01 '17 at 17:02
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Even if it is not a problem, it still generates the annoying and distracting output, this screams "bug" ... – Jakub Truhlář May 29 '17 at 09:30

score 46 · Answer 3 · answered Sep 28 '16 at 23:11

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I was unable to find a way to get rid of the warning, but if you want to prevent the app from crashing, you need to provide a description for why you are accessing the camera, photo library, etc. This is new in iOS10.

Input the following into your Info.plist file.

Photo

Key: Privacy - Photo Library Usage Description Value: $(PRODUCT_NAME) photo use

Camera

Key: Privacy - Camera Usage Description Value: $(PRODUCT_NAME) camera use

More info can be found here: https://iosdevcenters.blogspot.com/2016/09/infoplist-privacy-settings-in-ios-10.html

answered Sep 28 '16 at 23:11

Nick Meehan

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This fixed it for me – TerryS Sep 30 '16 at 11:54
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The warning messages are still there. – Kevin Oct 01 '16 at 15:13
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my app doesn't use the camera at all and I get the message. Still, I tried adding these to plist as you suggested and that still didn't solve it.. – FlatDog Oct 02 '16 at 22:36
For me it also fixed it. Thank you very much :-) – user1895268 Oct 16 '16 at 14:51
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Added this But still App is crashing – Anand Oct 21 '16 at 11:51
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Anybody figure this out? I am not using photo library nor am i using camera, however I still get the warning and the crash – MikeG Oct 24 '16 at 17:39
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@MikeG I am also not using either library and still getting the crash, I got rid of the warnings by adding the key/string config details to the `info.plist` file. Apparently its needed in IOS 10.x – David Nov 17 '16 at 00:11
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I've got this warning after setting textView.attributedText to NSAttributedString – mik.ro Dec 16 '16 at 11:45
is it safe to ignore this warning? – Cmag Jan 11 '17 at 02:36
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exactly, it happens when you set `.attributedText` – Fattie May 01 '17 at 17:02

score 12 · Answer 4 · answered Nov 09 '16 at 18:37

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I find you can get this error merely by using a UIWebView. My solution was to replace my use of UIWebView with WKWebView.

answered Nov 09 '16 at 18:37

matt

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I tried WKWebView but the warning is still appearing – muz the axe Dec 15 '16 at 04:11

Gerd Castan · Answer 5 · 2017-12-07T22:37:53.233

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I had this after adding Answers on Fabric to my project.

Deleting derived data did the trick for me. (shift alt command k in XCode)

Edit a year later:

After deleting derived data, always exit XCode and start it again.

In unrelated cases I have the impression that deleting derived data does not clear XCode’s in memory caches of the derived data.

edited Dec 07 '17 at 22:37

answered Nov 19 '16 at 20:39

Gerd Castan

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warning is still there BUT app is not crashing anymore.I am using xcode8.2.1 – Dashrath Mar 10 '17 at 13:06

score 2 · Answer 6 · answered Jul 18 '17 at 20:40

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Resetting the iOS simulator fixed this for me. Simulator -> Reset Content And Settings.

answered Jul 18 '17 at 20:40

Eric Mentele

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Just got to the same conclusion and it worked for me too. – Franz Jul 19 '17 at 14:50

score 0 · Answer 7 · answered Jun 02 '17 at 19:01

In my case this warning started to appear after opening a second xcode project and running the second app on the simulator. After changing back to the first app, the warning started to appear. I just quit the Simulator and Xcode and reopened my project. The warning disappeared after that. If that doesn't solve it, proceed with the other answers. Xcode can be really picky sometimes.

Class PLBuildVersion is implemented in both frameworks

7 Answers7

Main Idea

What is the problem?

Linked

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