It just straight up gave me this error even though I do have Unreal Engine 5.6.1.
Hello,
Welcome to the Convai Developer Forum!
This issue does not appear to be related to Convai.
We recommend checking your Unreal Engine installation/version and the Epic Games Launcher setup. If the issue continues, please contact Epic Games support, as this seems to be related to the Unreal Engine or Epic Launcher installation process.
As an alternative, please download the plugin directly from our GitHub releases page: Releases · Conv-AI/Convai-UnrealEngine-SDK-V4 · GitHub
After downloading it, create a Plugins folder inside your Unreal project directory, then move the downloaded Convai folder into that Plugins folder.