Just to let you know, a project that was saved with the Projucer built from the dev tip fails to compile VST2.
Didn’t dig too deep, as reverting to 5.0.1 Projucer works correctly for me, but the configuration was:
Windows 10 x64
Projucer x64 built from commit 919e3e36ec06c8a09c163c50d8c9cdf43aca00d5 [919e3e3], Release x64 build with VS2013
VST2 project of the plugin, VS2013 exporter (using it with VS2017)
It fails with:
juce_audio_processors/format_types/juce_VSTCommon.h(183): error C2070: ‘unknown’: illegal sizeof operand
So the VST2 of the plugin won’t compile, all the other formats compiled nicely.