PartitionInterchip error relating to '<numCores> must be a positive integer'

[Michaeljurado42]

This error happens when n_chips is high but the number of cores used by the neural network is low. For example, if a neural network requires 77 cores and you use PartitionInterchip with n_chips = 3 this error will occur. (See the attached pdf for an example of this error:
PartitionInterchip_error.pdf

This bug comes from this thread on nengo's forum: (https://forum.nengo.ai/t/long-execution-time-and-timeout-with-nengo-loihi/1981/11). Under normal circumstances this bug should not occur (for example where n_chips = 1 in the example I provided), but I still post it here since it is not a graceful exit.