Honeybee UTCI Comfort Map Error

Hi everyone, i’m pretty new with this software,
i want to calculate the HB Universal Thermal Climate Index, but somehow this red popup appears.
can anyone help me? thankyou before!

Hello, I have a similar error but one in which only 1 task failed…have you been able to figure out a solution?

It seems to me that you might just not have Radiance installed?

It runs well on my end with the latest development version of LBT:

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Do you have a sample file the recreates the issue?