# Problems building for Switch with FMOD **URL:** \ **Category:** Unity\ **Created:** [May 9, 2018, 3:06pm UTC](https://qa.fmod.com/t/problems-building-for-switch-with-fmod/13865 "2018-05-09T15:06:31Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Slaktus](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@Slaktus](https://qa.fmod.com/u/Slaktus)\ **Post date:** [May 9, 2018, 3:06pm UTC](https://qa.fmod.com/t/problems-building-for-switch-with-fmod/13865/1 "2018-05-09T15:06:31Z")
Hello, Helping port a PC game for Switch, and FMOD 1.10.00 seems to cause problems during build. Specifically, IL2CPP throws errors like this: SwitchIL2CPPCache/il2cpp\_cache/860828723F57E46495E9C697E1A5638D.o:Temp\StagingArea\il2cppOutput\Bulk\_Assembly-CSharp-firstpass\_4.cpp:function ParameterInstance\_FMOD\_Studio\_ParameterInstance\_SetValue\_m2654580970: error: undefined reference to ‘FMOD\_Studio\_ParameterInstance\_SetValue’ SwitchIL2CPPCache/il2cpp\_cache/860828723F57E46495E9C697E1A5638D.o:Temp\StagingArea\il2cppOutput\Bulk\_Assembly-CSharp-firstpass\_4.cpp:function ParameterInstance\_FMOD\_Studio\_ParameterInstance\_IsValid\_m365775692: error: undefined reference to ‘FMOD\_Studio\_ParameterInstance\_IsValid’ There are hundreds of similar errors, and they only seem to occur on Switch builds. It looks like the project integration is somehow broken, but it works fine when building for Windows. What’s the best way to solve? Update or reinstall FMOD? ---
**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\ **Post date:** [May 9, 2018, 11:26pm UTC](https://qa.fmod.com/t/problems-building-for-switch-with-fmod/13865/2 "2018-05-09T23:26:51Z")
There have been some fixes for the IL2CPP issues after 1.10.00 for all platforms. I would recommend updating to the latest, 1.10.05 at the moment, to get these fixes.