There are several ways to install and manage Cyclops but the easiest way is by using the aescripts + aeplugins manager.
Window
> Extensions
> Cyclops
.<aside> ⚠️ Manual installation is really only used by extension developers and is offered here only as a last resort.
</aside>
Change the extension of the Cyclops.zxp from .zxp
to .zip
.
Unzip this newly created Cyclops.zip to get a folder called Cyclops.
Navigate to the Adobe extensions folder.
macOs: /Library/Application Support/Adobe/CEP/extensions
Windows: C:\\Program Files (x86)\\Common Files\\Adobe\\CEP\\extensions
Copy the Cyclops folder to the extensions folder.
Close and restart After Effects.