Using an OPT-style post with a newer version of PowerMill, or switching computers can break the connection between the older post and DuctPost. Therefore, a new post should be built to replace the old DuctPost.
Issue
When post-processing NC code with an opt file in PowerMill, one or both of the following errors are displayed:
- PowerMill Warning:
Your tape file will be created, but you are using 'DuctPost,' a post-processor that is no longer maintained.
We recommend upgrading to 'Autodesk Manufacturing Post Processor Utility to receive post-processing updates and take advantage of the new features in PowerMill.
Please contact your system supplier for more information on how to upgrade.
![](https://t9010048671.p.clickup-attachments.com/t9010048671/dd958a8c-62af-4bc3-a196-0b2afc5f757f/image%20(5).png)
- PowerMill Error:
Postprocessor Error - Failed to get the translator version from the registry.
Please ensure that DuctPost is installed and that it has been registered correctly.
![](https://t9010048671.p.clickup-attachments.com/t9010048671/79e0133a-859e-42dd-aa33-12838703de55/image%20(4).png)