# FMOD Studio Build Error

**URL:** <https://qa.fmod.com/t/fmod-studio-build-error/13585>\
**Category:** FMOD Studio\
**Created:** [December 11, 2017, 1:43pm UTC](https://qa.fmod.com/t/fmod-studio-build-error/13585 "2017-12-11T13:43:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![johnw009](https://avatars.discourse-cdn.com/v4/letter/j/96bed5/32.png) [@johnw009](https://qa.fmod.com/u/johnw009)\
**Post date:** [December 11, 2017, 1:43pm UTC](https://qa.fmod.com/t/fmod-studio-build-error/13585/1 "2017-12-11T13:43:02Z")

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Hi,

I’m getting a weird error when building my platforms all of a sudden. I get a “External encoder dynamic library not found” on new events that I created. I’ve been trying to research this error with no luck. Any help would be appreciated. Thanks!

I’m on FMOD Studio v 1.10.01  
Windows 7 (64 bit)

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**Author:** ![richard\_simms](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/richard_simms/32/261_2.png) [@richard\_simms](https://qa.fmod.com/u/richard_simms)\
**Post date:** [December 11, 2017, 10:42pm UTC](https://qa.fmod.com/t/fmod-studio-build-error/13585/2 "2017-12-11T22:42:56Z")

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Hi John,

When you say you are building your platforms - are you building to PS4? You will need to have the AT9 encoder in the correct directory in order to build PS4 banks.

Please check the “Platform Specific Starter Guide” in the API installation folder’s documentation for more information.

Thanks,  
Richard