Question-and-Answer Resource for the Building Energy Modeling Community
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Hi @timyoder, I'd try a couple things. First, install Radiance to a nice short path with no spaces in the directory names, e.g.. "C:\radiance". Then rerun the "scan for tools" in OpenStudio, and make sure that the Radiance you just installed is the one showing up in the tools summary.
If you have multiple copies of Radiance installed, this can be problematic. It also sounds like you have a lot of items in your system path, which may also be causing you some issues here. Windows is limited in how long of a $PATH variable you can have. If there is any way you can weed out any duplicate or unused $PATH entries, that would help too. If it still fails, the next thing to look at would be the error logs.
Let us know how you make out with the first steps; we'll get you going here.
