Bug
ArcGIS Pro 3.6 fails to open a DWG file and returns the error message “External component has thrown an exception".
| Bug ID Number | BUG-000181234 |
|---|---|
| Submitted | November 25, 2025 |
| Last Modified | January 20, 2026 |
| Applies to | ArcGIS Pro |
| Version found | 3.6 |
| Operating System | N/A |
| Operating System Version | N/A |
| Version Fixed | 3.7 |
| Status | Fixed |
Workaround
Open the DWG in C3D. In Toolspace, click the Settings tab, expand Point, and select User-Defined Properties. Click Unclassified. In the table that opens, for the Additional Descriptions property, check the Default Values check box. Save the file and open it in ArcGIS Pro.
Steps to Reproduce
Bug ID: BUG-000181234
Software:
- ArcGIS Pro
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