Help with sidechannel

I tried following the instructions at the site below. When I click the play button I get the following in console.

Assets/ML-Agents/StringLogSideChannel.cs(14,26): error CS0507: 'StringLogSideChannel.OnMessageReceived(IncomingMessage)': cannot change access modifiers when overriding 'protected' inherited member 'SideChannel.OnMessageReceived(IncomingMessage)'

https://github.com/Unity-Technologi...ase_3_distributed/docs/Custom-SideChannels.md

I am using ML agent 1.02 and unity 2019.4.

Is the documentation correct or am I missing something?

 

In the SideChannel class, the OnMessageReceived method is protected, not public.

Try

Code (CSharp):

1. protected override void OnMessageReceived

instead of

Code (CSharp):

1. public override void OnMessageReceived

If that works, then most likely the documentation is incorrect.

 

Yes that worked. Thank you.

Also for anyone else who gets stumped by this. I had to fix other items too after this. I also had to add

Code (CSharp):

1. using Unity.MLAgents.SideChannels;
2.  
3.  

Then in regisiterlogsidechannel
SideChannelManager.RegisterSideChannel(stringChannel);

Changed to

SideChannelsManager.RegisterSideChannel(stringChannel);


In the python code a lot of the unity env calls are no longer valid.
See https://github.com/Unity-Technologies/ml-agents/blob/master/docs/Python-API.md

 

Can you open an issue for this on GitHub so it can get fixed? https://github.com/Unity-Technologies/ml-agents/issues