Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

OpenStudio Run Errors [closed]

asked 2015-12-01 07:18:24 -0500

Dustin's avatar

updated 2015-12-01 11:17:17 -0500

Hi all,

I am having trouble trying to get my OpenStudio model to run. Normally I would start trying to run it and work through the errors with the error text file. However when I first tried to do this, everything below the ModelToIdf was "Out Of Date". Any solution to this. I think it might be that my E+ isn't the correct version or something along those lines. My OpenStudio version is 1.9.5.

Below is the image of what I am talking about. image description

This is the one error that comes up when I open errors and warnings in the ModelToIdf file. This is what is causing the simulation to not run. The others errors were simple things such as constructions.

Error with conversion: C:\Git\OpenStudio_2\openstudiocore\src\model\ModelObject.cpp@913 : Unable to deduce a value for boolean field 10 in Object of type 'OS:AirTerminal:SingleDuct:VAV:NoReheat' and named 'VAV1SE'.

edit retag flag offensive reopen merge delete

Closed for the following reason the question is answered, right answer was accepted by Dustin
close date 2015-12-09 12:27:58.142311


Can you share your model? Drop box, gdrive or email at would all be ok with me.

Kyle Benne's avatar Kyle Benne  ( 2015-12-01 15:51:41 -0500 )edit

I emailed you my model. Thanks for taking a look and trying to help me out.

Dustin's avatar Dustin  ( 2015-12-02 07:11:06 -0500 )edit

It looks as those it has something to do with the VAV:NoReheat model. I just cannot figure out what the problem is. I ran a previous version of the model when I was putting everything together where there was only VAVw/reheat. This worked fine but the iteration of my model after that that had VAV:NoRheat it starts failing again and not going into expand objects.

Dustin's avatar Dustin  ( 2015-12-03 12:33:50 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted

answered 2015-12-03 15:46:41 -0500

Looked at your model. Yes it does have to do with the VAV no reheat component. I recently added a new feature to vav no reheat and vav reheat so that you could control on oa requirement as opposed to just load. This introduced a new required field named "Control For Outdoor Air". The version translator that upgrades OS Models is supposed to take care of this new required field, but for some reason it did not. In the short term you can edit your osm file entering "No" for the field "Control For Outdoor Air". I rarely advocate editing osm directly, but in this case it will get you going quickly and it is a fairly isolated change.

There seems to be another report of this same thing.

I will certainly have a fix in place by our 1.10 major release coming up this month.

There appear to be other errors in your model that will prevent it from simulating well or at all. Two things I noted is that there are no design days, and there are no setpoint managers on the supply outlet nodes of your AirLoopHVAC system. In any case OS should not crash. Once you work around the vav terminal issue you should be able to triage your simulation errors.

edit flag offensive delete link more


This is fixed here and will be available in 1.10.

Kyle Benne's avatar Kyle Benne  ( 2015-12-07 13:40:14 -0500 )edit

Question Tools

1 follower


Asked: 2015-12-01 07:18:24 -0500

Seen: 323 times

Last updated: Dec 03 '15