Disabling ARC on Specific Files in XCode

08/17/2011

ARC (Automatic Reference Count) was introduced with XCode 4.2. This means that you no longer have to release, autorelease, or retain in your code. This makes it easier when writing code but a little difficult when importing or copying code snippets from existing code written for older versions. You might get errors such as
'release' is unavailable: not available in automatic reference counting mode
or
ARC forbids explicit message send of 'release'
or
ARC forbids explicit message send of 'autorelease'

To avoid these errors, you can disable arc for your imported files. Here is how:

1. Click on your project in the Project Navigator, and then on the Target.

2. Under "Build Phases", expand "Compile Sources".

3. Click on the file you want to edit and type in -fno-objc-arc. It should appear in the "Compiler Flags" column.

Tags: IOS, iPhone, iPad, iPod, ARC, Automatic Reference Count, disable, turn off, XCode, Cocoa, Objective-C

Comments

landon

10/19/2011 21:06

thanks lee, your solution saved me. we've been building an app using phonegap and 2 files were killing me because of arc.

Michael

10/24/2011 12:40

I tried this solution but cant seem to get it to work. After I insert the compiler flags and build the app it keeps crashing in the dealloc methods. If I trying to convert to project to ARC even with the compiler flags the same errors come up as if the flags werent there. Furthermore Xcode removes the flags afterwards. Did I miss something?

Towhid

12/06/2011 21:20

Hi, Thanks.....Saved lots of time.....

mudface

12/20/2011 13:54

Thanks for the tip!

Mohamed Hamdi

01/03/2012 02:31

Many thansk

wzbozon

01/03/2012 16:22

thanks, this is useful

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01/10/2012 22:37

Under "Build Phases", expand "Compile Sources".

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12/29/2012 00:26

If a project has already been created with ARC disabled, how do I enable it and vice versa?

sss

02/12/2012 22:54

tnx pal

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02/20/2012 17:20

Yet another thank you!

Henrik

03/08/2012 08:00

Thanks a lot!!

hussain1982

04/10/2012 13:31

Thank you very mych

tutlegrand

04/25/2012 10:09

So many thanks, but another one : Thank you !
:-)

Amir

07/14/2012 10:25

clear and concise. Thanks a bunch

philostein

08/04/2012 21:17

Great! I would've had more luck finding the Higgs Boson than this. :)

babos

09/21/2012 08:05

very good !!!! But there's a method to apply this filter to all file in oneshot ;))))

diljimp link

10/05/2012 03:31

Works nicely. Thanks!

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01/03/2013 02:03

Is it possible to disable ARC for individual files? if yes then please share the code or method.

liposuliminosBiroKotos

10/31/2012 07:20

Thanks!

Raj

11/23/2012 19:06

Worked like a charm - thanks dude.

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02/05/2013 01:28

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03/05/2013 00:05

i agri your information

...........
thanks

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03/19/2013 10:10

I can see that you made some conclusions on your own, so thats very valuable for readers like me.

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04/17/2013 15:25

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04/23/2013 20:51

I have followed the steps which you have mentioned above..and It really works..

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05/13/2013 02:59

By following the instructions mentioned in this web page you can easily disable the ARC on specific files in XCode. The procedure won’t be tough and can be accomplished within a few minutes. Follow the steps accordingly to obtain the maximum result.

Click Here link

06/14/2013 14:44

very good !!!! But there's a method to apply this filter to all file in oneshot ;))))

Learn More link

06/14/2013 14:46

Thanks for such post and please keep it up.

Disabling ARC on Specific Files in XCode

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