Inventor 2026 DWG import error- DWG TrueView ‘Fatal Error: ASC Initialization failed’

October 3, 2025 Joanna Gryszka

Issue:

Inventor 2026 error importing an AutoCAD DWG file into a sketch or selectively importing the file.

DWG TrueView Error Aborting

FATAL ERROR: ASC initialization failed. Please reinstall the product.

Solution:

Clean uninstall DWG True View 2026

Clean uninstall instructions for DWG True View:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Unable-to-run-DWG-TrueView-when-opening-AutoCAD-based-software.html

Remove the following folders once DWG True View is uninstalled from Windows Control Panel:

C:\Program Files\Autodesk\DWG TrueView 2026 - English
C:\ProgramData\Autodesk\DWG TrueView 2026 - English
%localappdata%\Autodesk\DWG TrueView 2026 - English
%appdata%\Autodesk\DWG TrueView 2026 - English

Remove the following Windows Registry Keys:

HKEY_CURRENT_USER\SOFTWARE\Autodesk\DWG TrueView
HKEY_LOCAL_MACHINE\Autodesk\DWG TrueView

Reinstall DWG True View 2026 from this download:https://www.autodesk.com/products/dwg-trueview/overview

2. Clean uninstall Inventor 2026

Clean uninstall instructions for Inventor:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Perform-a-clean-uninstall-of-Inventor.html

Other ASC component or initialization errors:

'Can't launch ASC component' error on Inventor 2026 launch: https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Can-t-Launch-ASC-Component-message-when-starting-Inventor-2026.html
'ASC Initialization failed' error opening an AutoCAD DWG from Vault: https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/FATAL-ERROR-ASC-initialization-failed-Please-reinstall-the-product-after-opening-a-drawing-in-Inventor-a-second-drawing-is-opened-in-AutoCAD-from-the-Vault-level.html

About the Author

Manufacturing Technical Support Specialist<br><br>Joanna has over eight years of experience working with Autodesk products. She started supporting core AutoCAD and network installations of all Autodesk products. She now has five years of experience with Inventor. <br> She graduated from Mechanical Engineering and has been providing solutions to clients and dedicating her knowledge to the Solution Center since then.
More Content by Joanna Gryszka

No Previous Articles

Vault Backups Suddenly Double Their Run Times

Get Tips Delivered.

Subscribe to Email Updates.

Email Address

First Name

Last Name

Country

Thank you!

Error - something went wrong!

Return to Resources

Welcome to our Hub

Inventor 2026 DWG import error- DWG TrueView ‘Fatal Error: ASC Initialization failed’

Issue:

Solution:

About the Author

Next Article

Solutions Beyond Software™

Inventor 2026 DWG import error- DWG TrueView ‘Fatal Error: ASC Initialization failed’

Issue:

Solution:

About the Author

Next Article

Most Recent Articles

Vault Backups Suddenly Double Their Run Times

Spinning Wheel in Vault Thin Client. IIS Reset will resolve the problem for a short period of time but then the problem returns.

You are receiving an error when trying to check a file into Vault. The error indicates the file already exists in Vault, but you cannot find the file anywhere in Vault even running an advanced search.

Starting with the 2026 release of the Imaginit Vault Utilities, you will now receive a notice if Autodesk has released updated DLL Libraries which may cause problems with the function of the utilities

This issue appears to be caused by disks with 8KB sector formatting when installing SQL.

The Issue Tool is an integrated feature available across several Autodesk Construction Cloud (ACC) modules, such as Model Coordination, Docs, and Build.

All Revit elements display as halftoned whether object style changed or not.

After dragging the Design Review app to a secondary monitor, or opening it on a monitor other than the primary monitor, all the ribbon tools disappear

After upgrading a Twinmotion file from version 2022.2 or earlier, syncing the file to a Revit model causes the materials applied on the model geometry to reset.

If you need to copy a Twinmotion file between different computers without losing all the material textures applied to geometries in the file, please see the solution below.

The blue region may also appear when switching to a new visual style, causing on-screen commands/tools to become unresponsive in the model space and viewports

AutoCAD and vertical products 2022 to 2026 request admin credentials or return an "Error 1730" on the first run after an installation

Solutions Beyond Software™