# Duplicated symbols in FMOD Studio Programmer’s API for iOS

**URL:** <https://qa.fmod.com/t/duplicated-symbols-in-fmod-studio-programmer-s-api-for-ios/11562>\
**Category:** FMOD Engine\
**Created:** [July 17, 2014, 1:48pm UTC](https://qa.fmod.com/t/duplicated-symbols-in-fmod-studio-programmer-s-api-for-ios/11562 "2014-07-17T13:48:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Rafal](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@Rafal](https://qa.fmod.com/u/Rafal)\
**Post date:** [July 17, 2014, 1:48pm UTC](https://qa.fmod.com/t/duplicated-symbols-in-fmod-studio-programmer-s-api-for-ios/11562/1 "2014-07-17T13:48:34Z")

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I’m integrating FMOD Studio in my game and build fails in Xcode at linking stage with report of duplicate symbol \_FMOD\_Optimised\_Routines\_NoOpt.

It looks that some object files are duplicated in libraries, i.e. for armv7:

```
$ lipo libfmod_iphoneos.a -thin armv7 -output libfmod_iphoneos_armv7.a
$ ar -t libfmod_iphoneos_armv7.a | sort | uniq -d
fmod_optimised_routines_noopt-ACB1F04BF6036DC3.o

```

After removal of duplicated object file, it links correctly.

I checked it with FMOD Studio Programmer’s API 1.04.03 and 1.04.04.

Please let me know if this will be fixed in the next API release.

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<div class="post-metadata">

**Author:** ![mathew](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/mathew/32/431_2.png) [@mathew](https://qa.fmod.com/u/mathew)\
**Post date:** [July 25, 2014, 5:02am UTC](https://qa.fmod.com/t/duplicated-symbols-in-fmod-studio-programmer-s-api-for-ios/11562/2 "2014-07-25T05:02:49Z")

</div>

Apologies for anyone affected by this, I have corrected the issue and it will be fixed for our next release.

Fixed in 1.04.05 (now available).

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<div class="post-metadata">

**Author:** ![rexguo1](https://avatars.discourse-cdn.com/v4/letter/r/f08c70/32.png) [@rexguo1](https://qa.fmod.com/u/rexguo1)\
**Post date:** [July 25, 2014, 9:00am UTC](https://qa.fmod.com/t/duplicated-symbols-in-fmod-studio-programmer-s-api-for-ios/11562/3 "2014-07-25T09:00:53Z")

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Is there a temporary solution to this? We are affected by it too.

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<div class="post-metadata">

**Author:** ![rexguo1](https://avatars.discourse-cdn.com/v4/letter/r/f08c70/32.png) [@rexguo1](https://qa.fmod.com/u/rexguo1)\
**Post date:** [July 25, 2014, 2:54pm UTC](https://qa.fmod.com/t/duplicated-symbols-in-fmod-studio-programmer-s-api-for-ios/11562/4 "2014-07-25T14:54:12Z")

</div>

Temporary solution is to manually remove the .o :

> **[How to fix a "Duplicated Symbols" error on binary files](http://angelolloqui.com/blog/31-How-to-fix-a-Duplicated-Symbols-error-on-binary-files)**
>
> IT blog and CV