# Error CS0117: 'VERSION' does not contain a definition for 'dll'

**URL:** <https://qa.fmod.com/t/error-cs0117-version-does-not-contain-a-definition-for-dll/16217>\
**Category:** Unity\
**Created:** [September 23, 2020, 10:59pm UTC](https://qa.fmod.com/t/error-cs0117-version-does-not-contain-a-definition-for-dll/16217 "2020-09-23T22:59:24Z")\
**Posts on this page:** 1\
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**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:** [September 29, 2020, 3:50am UTC](https://qa.fmod.com/t/error-cs0117-version-does-not-contain-a-definition-for-dll/16217/2 "2020-09-29T03:50:43Z")

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In release 2.01 there are source files under `Assets/Plugins/FMOD/platforms` that need to be part of the FMODUnity assembly, otherwise player builds fail with lots of errors about FMOD.VERSION and FMOD.Studio.STUDIO\_VERSION missing a definition for ‘dll’.

The docs are being updated with this information in the next release.

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_[View the full topic](https://qa.fmod.com/t/error-cs0117-version-does-not-contain-a-definition-for-dll/16217)._