Duplicate Symbols for Architecture arm64

Question

When I try running my Xcode Project it fails with an error stating that I have duplicate symbols. I looked online where the find these duplicates but have had no luck:

Any ideas how to fix this?

Solution 1

From the errors, it would appear that the FacebookSDK.framework already includes the Bolts.framework classes. Try removing the additional Bolts.framework from the project.

Solution 2

For me it helped to switch the "No Common Blocks" compiler setting to NO: It pretty much seems to make sense, the setting is explained here: What is GCC_NO_COMMON_BLOCKS used for?

Solution 3

Using Xcode 8, "Update project to recommended settings" option turned ON 'No Common Blocks' for my project.

Turning it back to OFF fixed everything up.

Solution 4

I've messed up my pods while downgrading a pod and I've managed to resolve the issue with duplicate symbols for architecture arm64 by removing the pods and installing them again with:

pod deintegrate
pod install

Solution 5

For me it was that i imported a file as a .m not a .h by mistake

View more solutions

Comments

[Yaro]

You are the man! Just made a new xCode 7.3.1 project and the default setting is YES :(

[commscheck]

This option was switched on for me by Xcode's "Update project to recommended settings" window.

[Sazzad Hissain Khan]

Update project to recommended settings, how do i do that? i mean from which menu?

[Trip]

@SazzadHissainKhan It's in your build settings.

[Vladimir]

That's LOL, but true ;D

[Sung]

Thanks for this! Was struggling with an issue with a constants.h file I was creating lol

[reetu]

Thank you for the answer I too was facing the same issue and your answer worked for me...

[Sumit Kumar Saha]

Thanks, i was struggling for this problem for past 3-4 hrs

[Imdad Ali]

how to? can you please guide me step by step

[showmyroutes]

You are the best

[Fattie]

priceless tip, but doh didn't help in my case! :O

[Dorald]

Step 2: Solved my problem. Thank you :)

[user426132]

this just happened to me.. I blame code completion for everyting

[Supertecnoboff]

Thank you so much, I didn't realise I had made this mistake, was taking up all my time. Thanks again 👍

[andrewlundy]

I was using the Google Places SDK, integrated through CocoPods - 3.9.0, and this answer fixed my issue.

[Vladimir Sukanica]

Thanks, you saved me a lot of headache

[Sanzio Angeli]

Note you have to specify the exact project you want to deintegrate. I would recommend dragging the project from xcode itself as opposed to from your file explorer... Had over 450 of these arm64 errors...

[VyacheslavBakinkskiy]

Helps with switching the "No Common Blocks" compiler setting to NO

[bdroid]

do you have any guide?

[hbk]

time-saving answer