Critical omission in the 5.5 version tutorial for Imitation Learning with Learning Agents

Countsie
Mon, 09 Jun 2025 04:46:30 +0000
Programming & Scripting

If you are following this tutorial, you will run into an issue setting up your Imitation Trainer:

Epic Games Developer

Learning Agents (5.5) | Course

Get familiar with Learning Agents: a machine learning plugin for AI bots. Learning Agents allows you to train your NPCs via reinforcement & imitation le...

It’s not shown in the tutorial, but you will need to set up a process and communicator as the previous tutorials show when setting up the PPO trainer. Importantly, you need to change the Trainer File Name from train_ppo to train_behavior_cloning in the Trainer Process Settings as I show here:

Hopefully this helps others over this stumbling block, as once it’s working this tool is fantastic!

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