Question-and-Answer Resource for the Building Energy Modeling Community
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I feel like I'm not understanding something because the idf snippet does not seem to match the content of the error file you posted. That said there was a change in the structure of this object some time back. The change was handled in OpenStudio by me in this commit. This change has been in OpenStudio since version 1.9.3. Is there any chance you are using an older version of OpenStudio, but using a newer version of EnergyPlus for simulation?
One thing I did notice when reviewing the above linked code change is that while OpenStudio is setting the ground temperature model name, it does not appear to be setting the model type. That might be a lingering issue that nobody has uncovered until now, because this model does not get a lot of exercise.
If you send me, kyle.benne@nrel.gov, your idf I can debug further.
