Since the removal of the VST2 SDK from JUCE (see this and this post), the AudioPluginHost no longer supports hosting VST2 plug-ins by default. You’ll need to download an older copy of the VST SDK containing the VST2 SDK and add the path to your global search paths here:
and then enable the JUCE_PLUGINHOST_VST flag in the juce_audio_processors module here:
