I'm following the lesson "Use Deep Learning to Assess Palm Tree Health". I've had some issues trying to train the model and decided to skip ahead to reviewing the model. I'm stuck on the step "Palm tree detection." In this step I'm trying to run the Detect Objects Using Deep Learning tool, using the .emd file provided in the lesson. I get the following error:

I'm using ArcGIS Pro 2.4.3.
Does anyone have the same issue? Any suggestions would be appreciated. Thanks!