Problems running OpenStudio 1.9.4 measures: Radiance daylighting measure and fan_assist_night_ventilation

asked 2015-11-26 12:46:57 -0500

Mathieu L. gravatar image

updated 2017-08-05 13:04:28 -0500

Hi guys,

I’m facing a few troubles with OS 1.9.4 (win 7 64 bits machine, have the right tools installed and indicated in OSapp), above all with the measures tab.

I’ve just uninstalled and reinstalled OS 1.9.4. All the applications are in default directories. The general problem is that the OSapp often shuts down when adding o removing a measure.

I’m trying to use 2 important measures: Radiance daylighting measure and Night Ventilation (but I think it’s a general problem with Ruby o something like this).

Radiance Daylighting Measure

I sent a message in this post last week, and they told me (sending the file) that it ran well on other machine, so I guess it comes from something in mine…? Changing a few things today (uninstalling Ruby and other Radiance versions from C: hard desk) I have a “new” sterr file:

DL is deprecated, please use Fiddle skies\render_sky_input skies\render_sky_skyfuncs

So it runs the simulation but none of the Radiance results expected met… All values are 0.


Should be important to mention that 2 days ago, it didn’t show this message… Now I can’t load the measure. I have this message:

Process exited with a non-zero exit code of: 1 DL is deprecated, please use Fiddle C:/Users/mathieu/AppData/Local/Temp/OpenStudio.gP6008/ApplyMeasureNow/UserScript/user_script.rb:293:in block in run': undefined methodname' for nil:NilClass (NoMethodError) from C:/Users/mathieu/AppData/Local/Temp/OpenStudio.gP6008/ApplyMeasureNow/UserScript/user_script.rb:291:in each' from C:/Users/mathieu/AppData/Local/Temp/OpenStudio.gP6008/ApplyMeasureNow/UserScript/user_script.rb:291:inrun' from in.rb:355:in `<main>'

Script executing from: C:/Users/mathieu/AppData/Local/Temp/OpenStudio.gP6008/ApplyMeasureNow/UserScript Found argument 'design_flow_rate' with value '1000'. Found argument 'fan_pressure_rise' with value '500'. Found argument 'efficiency' with value '0.65'. Found argument 'ventilation_schedule' with value '{82b272f4-b56c-438b-a92a-24e2316ad393}'. Found argument 'min_outdoor_temp' with value '55'. Found UserScript 'Fan Assist Night Ventilation'. No zone equipment found, adding exhaust fan to avoid OpenStudio issue. No zone equipment found, adding exhaust fan to avoid OpenStudio issue.

Do you have any idea, suggestion, please…?

Please tell me if you want me to write to different messages.




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I did file an issue for the fan assist night ventilation measure when there is more than one zone between the exterior zone and the vertical shaft, but I don' think that is what you are hitting. The measure has not been updated on BCL, so something else may have caused the error you see. Did you upgrade OpenStudio? I also notice that you are running the measure in 'Apply Measures Now'. It was intended to be run once on a model, it may have unexpected behavior if you run it twice. If you send model to I can look at it

David Goldwasser gravatar image David Goldwasser  ( 2015-11-28 12:43:21 -0500 )edit

As for the Radiance measure issue, I would again suggest we speak offline and post a final resolution once we reach one. This forum is not intended to be the record of trial and error, rather it's a question and answer site. We can use your original question/post on the Radiance topic as a final resting place for The Answer. In the meantime, please put up your model and run directory on Dropbox or similar and email me the link at, and we'll see what's what -- sound good?

rpg777 gravatar image rpg777  ( 2015-11-29 20:32:37 -0500 )edit