Collect Observations sensor is null

Unity Engine
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1

When I try to override the function CollectObservations(VectorSensor sensor), said sensor is null.
I don’t know if i’m using it correcly, but I can’t find anywhere how to use it. I want to tell my agent where the target is.

Thanks

2

Strange, what version of ML-Agents are you using? Did you setup the number of vector observations in the Behavior Parameters (see here : ml-agents/docs/Learning-Environment-Design-Agents.md at main · Unity-Technologies/ml-agents · GitHub)? If the number of vector observations is 0, then there will not be a VectorSensor passed to CollectObservations.

3

I am using ml-agents version 1.6.0. I have got same error to.

4

Can you send me a screen shot of your Behavior Parameters in the inspector? If the number of vector observations is greater than 1, the VectorSensor should not be null. This would be a bug

5

I did another solution and null error is gone. My mistake. Sensor works fine.

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6

WHAT DID YOU DO?

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