???? Content is downloaded from modifying the Autodesk Revit Content Libraries 2017 in Programs and Features in Windows.

First of all , thx a lot for responding. I have all the content libraries and families. This is about the FABRICATION standards . Currently in imperial i can see 'DUCTBOARD' , 'DUCT FLUE' , ' DUCT+2WG' etc . Im sorry its been a only a week im with revit. Im ok with the ductwork , but now im thinking about applying this method to reality instead of autocad 2d which we currently use. so before that , i have to ensure it meets SMACNA standard. What should i do ? You are saying this guy with 3.04 had it some customized content ? Is there any official version above v2.0 ? Or is it something else for fabrication standard separate downloads ? With the current standards , only straight and elbows are drawn properly , rest of the reducers and all , it shows errors

Update to Latest Fabrication Content

I'm facing the same issue, also I've watched below video available on YouTube:

https://youtu.be/L9gtah3ZDi4

showing Autodesk Revit tool to convert design model to fabrication model. video is showing Revit Content Libraries V3.03 where I have V2!.
furthermore, after selecting the content library and select the model elements to apply fabrication tool, I am not able to see the addin called "design to fabrication" in "modify" tab as shown at 0:50 Sec.
kindly help me to update my content to latest version, and install the missing addin.