Card #3467 · Autodesk App Store
Revit API migration and add-in installation compatibility issues
Developers are struggling with migrating plugins to newer Revit versions due to changes in add-in installation folders and DLL dependencies. Specifically, new bundle locations in Revit 2027 are incompatible with older versions, and there are assembly loading errors with RevitAddInUtility for versions 2025-2026.
Pain score
0.66/ 1.00 · weighted product of four components
Reach0.73distinct authors (log-normalized)
Recency1.00freshness decay, half-life months
Engagement0.57upvotes + comments, normalized
Monetization0.50willingness-to-pay cues in evidence
§ Evidence — 3 verified quotes
Revit 2027 has a new location for non-user-specisific add-in bundles. My problem is that this is not compatible with older Revit versions.
I am migrating my Revit plugins to versions 2025 and 2026 of the API, and I am struggling with the update of the deployment part in Visual Studio.
Error 1001. Unable to load file or assembly 'RevitAddInUtility, Version=26.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependancies.
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