Issue:

Users reported that when trying to open any supported file type in Navisworks, the following error is displayed, and Navisworks might crash with an Error Report:

Autodesk Navisworks Manage <version>

Can't load <File Name> because of an internal error...

Can't load IFC because of an internal error in Autodesk Navisworks

In some situations, such an entry in the Navisworks log file can be found:

LcUSysDynamicLib, Loaded library from C:\Program Files\Autodesk\Navisworks Manage 2024\loaders\Rx\lcldifcrevit.dll
SceneConvertServerHost::LoadFileInternal: "C:\Users\beheer-john\Downloads\IVA-T010-DVI-AZA001-D-3DM-CE-0002.ifc"
Progress BeginSubOp: (0,01) Loading IVA-T010-DVI-AZA001-D-3DM-CE-0002.ifc ...
HIVE exception in FindEngineInformation(). Error code: 82
SceneConvertServerHost::LoadFileInternal: Returned 5
Progress EndSubOp: (0,2575)
</ACTION:LcOpSceneConvertManager>
Progress Error: (5) Can't load IVA-T010-DVI-AZA001-D-3DM-CE-0002.ifc because of an internal error

Causes:

This symptom has been reported:

As a file-specific issue or machine specific issue.
Related to a corrupt installation of the product.
Locating files on read-only hard drive.
IFC4x3 ADD2 file.

Solution:

To resolve the issue, check and perform the following strategies:

Hard drive or folder with limited write permissions

Move files to a different disk or folder.
Remove read-only attribute from drive or folder.
If the file is in a cloud drive, move it to a local folder and retest.

In case this is specific to a certain IFC file, change the reading IFC Option

From the Ribbon: Application button Options.
From the list on the left, expand File Readers.
Find and click IFC.
Toggle between options available for IFC File Readers, such as Revit IFC on or off or the "Conversion Method" set to Legacy or Modern in Navisworks 2020 and latest available conversion methods (V3 or V4) in later product versions.

In Navisworks 2020 and earlier releases:

Options > File Readers > IFC > Revit IFC in Navisworks

In Navisworks 2021 and later releases:

Options > File Readers > IFC > Conversion Methods in Navisworks

Options > File Readers > IFC > Conversion Methods in Navisworks

If changing the IFC reading option has not helped, review the articles in the See Also section.

Update Navisworks and Revit IFC Engine:

Make sure the Navisworks is up to date with latest Updates.
Download and install the latest available release of the Revit IFC engine used both by Revit and Navisworks: Revit IFC Releases.

IFC4x3 ADD2:

Use Navisworks 2025 or newer.

Note: In case this is specific to a certain machine or installation, continue with the below strategies for troubleshooting.

Repair Navisworks using the Windows uninstall option

Type apps & features in Windows search.
Select Apps & features.

In the Manage optional features section type Navisworks manage.

Search in Apps & Features for Navisworks Manage

Select Autodesk Navisworks Manage <version> and select Uninstall.

Select Autodesk Navisworks Manage <version> and select Uninstall.

Select Repair or Reinstall.

Select Repair or Reinstall in Navisworks

Select Repair option and click Repair button.

Select Repair option and click Repair button in Navisworks

LcUSysDynamicLib case

Security rules blocking the update feature of Autodesk AdODIS - company IT should fix rules.

See Also:

Products:

AutoCAD Products; Navisworks Products; Revit;