CODEWITHSUNDEEP
revit-apiautodesk
Rick Holguin
Rick Holguin

Reputation: 11

Revit Addin Template2020

I used the Revit Add-In Template but when I run the application I get this error. Do you know why I am getting this error? the error I get is Revit cannot run ExternalApplication. do you know why it cannot run the External Application?

The Error Message

External Tools- External Tool Failure = Revit Cannot run External application "Application NewRibbon01"

Upvotes: 1

Views: 608

Answers (1)

Jeremy Tammik
Jeremy Tammik

Reputation: 8339

This message indicates that you have installed an add-in manifest *.addin file in the Revit AddIns folder that refers to an external application NewRibbon01 that cannot be loaded for some reason.

One possible reason is that it cannot be found.

For instance, the add-in .NET DLL assembly file may not be located in the same AddIns folder, or an invalid path to the add-in DLL may have been specified.

Please read and follow the basic information about Revit add-in integration in the Revit developers guide. It explains in full how to set up your add-in manifest correctly.

The previous link refers to the Revit 2022 developer guide. The same information applies to Revit 2020 as well: Revit 2020 add-in integration

The easiest way to get to grips with the fundamentals of Revit add-in installation, framework architecture and more advanced usage is to work through the Revit API getting started material. That will answer this question of yours in full and innumerable others as well.

Upvotes: 1

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