topic Re: Unable to connect to the Autodesk Vault using VDF with third party CAD application. in Vault Customization Forum

Unable to connect to the Autodesk Vault using VDF with third party CAD application.

pranit_awale — Thu, 21 Aug 2025 13:29:42 GMT

I’m trying to log in to Autodesk Vault using the VDF (C# .NET API).
I created an API-Onboarding-ConsoleApplication (template provided by Autodesk), and it works fine there.

However, when I implement the same login logic inside another CAD application’s API, I encounter an exception during the login process.

Has anyone faced this issue before or knows the correct way to handle Vault login in such scenarios? Any guidance would be appreciated.

Re: Unable to connect to the Autodesk Vault using VDF with third party CAD application.

Markus.Koechl — Mon, 25 Aug 2025 15:20:34 GMT

A console application uses the .NET Framework API. CAD applications 2025 are based on .NET Core; therefore, your implementation needs to reference the .NET Core libraries. Find details in this Blog post: Autodesk Vault 2025 SDK - Breaking News - Design & Manufacturing.

Re: Unable to connect to the Autodesk Vault using VDF with third party CAD application.

pranit_awale — Thu, 28 Aug 2025 08:27:05 GMT

I'm not using AutoCAD and Inventor. Then how to integrate it, I'm not getting any way to do so?

Re: Unable to connect to the Autodesk Vault using VDF with third party CAD application.

Markus.Koechl — Thu, 28 Aug 2025 08:50:33 GMT

@pranit_awale: It sounds like your application is missing library references or output files that are available in the console application template but not in your standalone application. Besides the template, I suggest reviewing the sample application, which implements all available login methods with full source code access: koechlm/API-Onboarding-Sample--Vault-Logins.