# Projucer VST3 on Windows: flock.cpp and undeclared identifier

**URL:** <https://forum.juce.com/t/projucer-vst3-on-windows-flock-cpp-and-undeclared-identifier/25700>\
**Category:** General JUCE discussion\
**Created:** [December 22, 2017, 2:25am UTC](https://forum.juce.com/t/projucer-vst3-on-windows-flock-cpp-and-undeclared-identifier/25700 "2017-12-22T02:25:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\
**Post date:** [December 22, 2017, 8:53am UTC](https://forum.juce.com/t/projucer-vst3-on-windows-flock-cpp-and-undeclared-identifier/25700/2 "2017-12-22T08:53:20Z")

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> [@No flock.cpp in VST SDK?](https://forum.juce.com/t/no-flock-cpp-in-vst-sdk/25069):
>
> This issue seems to pop up a lot but I’m trying to build the audio plugin host example project and getting the error that the file “base/source/flock.cpp” is cannot be found. All of the other files in the base/source/ directory are fine (because they actually exist) but there’s no flock.cpp in this folder… If anyone can suggest a solution for me I’d be massively grateful! edit:

TL;DR: Get the latest VST SDK and the latest JUCE (from the develop branch)

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