hCloud Behavior Key Error


First try getting a simulation to run in hCloud, and this error came up:

experiment.json simulation: Error in Engine Process: Datastore error: Array data was expected to contain child data

I believe all the required keys are setup, and all keys are set to nullable as a first pass. There are two lists and these are set to “any” which are also nullable.

What are the causes for this error and how can it be fixed?


Hi Kevin, thanks for reporting this. We’re looking into it and believe in this instance the error relates to a known issue with nullable keys.

We’ll update this thread with more information or an update as soon as available.