Since today, I’ve been having a problem loading packages (apparently the ones with DLLs).
Example of the log file2025-06-09 11:05:05Z : Une exception est survenue lors de l’analyse du répertoire du package à l’emplacement C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\archi-lab.net
2025-06-09 11:05:05Z : notification:Dynamo.Exceptions.LibraryLoadFailedException: Echec du chargement de la bibliothèque: C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\archi-lab.net
à Dynamo.PackageManager.PackageLoader.CheckPackageNodeLibraryCertificates(String packageDirectoryPath, Package discoveredPkg)
Ou il ne trouve pas des répertoires
2025-06-09 11:05:05Z : Le dossier ‘C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\GenerativeDesign\dyf’ n’existe pas
2025-06-09 11:05:05Z : Le dossier ‘C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\GenerativeDesign.Extension\dyf’ n’existe pas
2025-06-09 11:05:05Z : Le dossier ‘C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\GenerativeDesign.Revit\dyf’ n’existe pas
I wanted to upgrade to Dynamo version 2.9, but I can’t find the EXE?
It’s only a ZIP file, but I don’t think it’s an update for Revit. Can you confirm?
There is no way to update Dynamo for Revit, only to update Revit.
It’s a near 100% certainty that you’ve got an invalid version of Archi-Lab (review this link). Your version needs to end with the same as your Revit year… which brings me to my last point.
You’re using Revit 2021. it has been over 5 years since that was released, and is an entire version and a quarter outside of the support window. You need to update your Revit project to a supported build for security reasons alone, never mind trying to build automations.
Generative Design is a feature of Revit which helps find optimized solution for design problems by way of Dynamo. Read up on it here: https://www.generativedesign.org/
Fortunately that warning is only saying there isn’t a /dyf folder in the package, which is by intentional so you can ignore it. (FYI @achintya_bhat@solamour@emrullah.yildiz might want to consider shipping an empty .dyf folder to prevent this from or otherwise repress the warning another way)
Then you may have a conflict between Archi-Lab and a Revit add-in. Disable ALL Revit add-ins and try again.
No more plugins before installing Revit.
Revit in its earlier version
Installs the package correctly, but the next time I open REVIT, it no longer recognizes the paths.
2025-06-09 14:48:13Z : Une exception est survenue lors de l’analyse du répertoire du package à l’emplacement C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\Spring - Dynamo 2.0
2025-06-09 14:48:13Z : notification:Dynamo.Exceptions.LibraryLoadFailedException: Echec du chargement de la bibliothèque: C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\Spring - Dynamo 2.0
à Dynamo.PackageManager.PackageLoader.CheckPackageNodeLibraryCertificates(String packageDirectoryPath, Package discoveredPkg)
à Dynamo.PackageManager.PackageLoader.ScanPackageDirectory(String directory, Boolean checkCertificates):
Echec du chargement de la bibliothèque: C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\Spring - Dynamo 2.0:
“Impossible de vérifier si un package appelé Spring - Dynamo 2.0 trouvé sur C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\Spring - Dynamo 2.0 a signé des fichiers dll. A dll file found at C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\Spring - Dynamo 2.0\bin\Spring.dll did not have a signed certificate. Ignoré.”
2025-06-09 14:48:13Z : Dynamo.Exceptions.LibraryLoadFailedException:
2025-06-09 14:48:13Z : Echec du chargement de la bibliothèque: C:\ProgramData\Autodesk\RVT 2021\Dynamo\2.6\packages\Spring - Dynamo 2.0
Restart the CPU, recreate the issue, and post your Revit journal, Dynamo log, and the list of packages found in your package manager. If you are concerned with providing those files directly on the open forum reach out to my colleagues in support via the accounts portal at manage.autodesk.com and they can help you, though you may be stuck with minimal support as you’re so far outside the window.
Not really possible for the REVIT log, but there is:
Users reported, that the Revit journal file contains lines with “API_Error : Assembly version conflicts” - even though Revit is working as expected.
For example: API_ERROR { : Assembly version conflict in some references in Autodesk.Revit.Config.Client assembly 'Addin’s module System.Net.Http of version 4.2.0.0 conflicts with same preloaded module of version 4.0.0.0 }
API_ERROR { : Assembly version conflict in some references in Autodesk.PnIDModeler.Client assembly 'Addin’s module System.Net.Http of version 4.2.0.0 conflicts with same preloaded module of version 4.0.0.0 }
API_ERROR { : Assembly version conflict in some references in Collaborate.dll assembly 'Addin’s module System.Net.Http of version 4.2.0.0 conflicts with same preloaded module of version 4.0.0.0 }
API_ERROR { : Assembly version conflict in some references in Autodesk.Bcg.Net assembly 'Addin’s module Autodesk.Bcg of version 3.24.1.0 conflicts with same preloaded module of version 3.26.2.0 }
API_ERROR { : Assembly version conflict in some references in SkyscraperClientHost.dll assembly 'Addin’s module System.Net.Http of version 4.2.0.0 conflicts with same preloaded module of version 4.0.0.0 }
API_ERROR { : Assembly version conflict in some references in Autodesk.C4R.Client assembly 'Addin’s module Autodesk.Bcg of version 3.24.3.0 conflicts with same preloaded module of version 3.26.2.0 'Addin’s module System.Net.Http of version 4.2.0.0 conflicts with same preloaded module of version 4.0.0.0 }
API_ERROR { : Assembly version conflict in some references in Autodesk.JsonApi assembly 'Addin’s module Newtonsoft.Json of version 10.0.0.0 conflicts with same preloaded module of version 11.0.0.0 }
API_ERROR { : Assembly version conflict in some references in System.Web.Http assembly 'Addin’s module Newtonsoft.Json of version 6.0.0.0 conflicts with same preloaded module of version 11.0.0.0 }
Status:
No issue has been identified and the software is behaving as designed.
