# ios xcode build Link error

**URL:** <https://qa.fmod.com/t/ios-xcode-build-link-error/11496>\
**Category:** Unity\
**Created:** [June 5, 2014, 8:13am UTC](https://qa.fmod.com/t/ios-xcode-build-link-error/11496 "2014-06-05T08:13:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![phyxon](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@phyxon](https://qa.fmod.com/u/phyxon)\
**Post date:** [June 5, 2014, 8:13am UTC](https://qa.fmod.com/t/ios-xcode-build-link-error/11496/1 "2014-06-05T08:13:48Z")

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hi peter  
undefined symbols for architecture arm7:\_FMOD\_System\_MixerSuspend referenced from RegisterMonoModules() in RegisterMonoModules.o …etc.  
unity3d 4.3.4f pro, fmod integration 1.03.08 ,ios target 4.3.  
tks

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**Author:** ![Guest1](https://avatars.discourse-cdn.com/v4/letter/g/ecccb3/32.png) [@Guest1](https://qa.fmod.com/u/Guest1)\
**Post date:** [June 12, 2014, 1:59am UTC](https://qa.fmod.com/t/ios-xcode-build-link-error/11496/2 "2014-06-12T01:59:49Z")

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Hi Phyxon, if you update to the latest version that issue should be resolved. The \_FMOD\_System\_MixerSuspend was renamed to \_FMOD5\_System\_MixerSuspend so if you’re still getting this error after upgrading try deleting fmod.cs and reimporting the unitypackage.