DGN Attach or Import fails with message cannot find DLL

Issue:

DGN import/attach gives this error: C:\Program Files\Autodesk\AutoCAD 2020\acdgnio.dbx cannot find a dll or other file that it needs.

Or it gives this error:

Causes:

This problem is generally caused by an issue with an underlying set of programming or the AutoCAD settings have become corrupted.

Solution:

If the issue is only on one or two machines, then generally what I have found to correct the issue is to rebuild the C++ libraries:

https://resources.imaginit.com/support-blog/how-to-uninstall-and-reinstall-c-libraries

If that doesn’t correct the issue, then you will need to reset the settings back to the defaults and retest:

https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-reset-AutoCAD-to-defaults.html

About the Author

Ryan Wunderlich

Sr. Technical Support Specialist<br><br>An AutoCAD Certified Professional, Ryan is responsible for taking client cases and assisting with issues with the software - everything from regular glitches to software deployments and whatever else goes wrong. He's proficient in AutoCAD (including customization), VBA, LISP, and Civil 3D.

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