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I get error: "Error during Autorouter Preprocessing Padstack cannot be used as a Via" in Ultiboard.

Primary Software: Electronics Workbench>>Ultiboard
Primary Software Version: 9.0
Primary Software Fixed Version: 9.x
Secondary Software: N/A

Problem: In Ultiboard when I start the autorouter I get error message: "Error during Autorouter Preprocessing Padstack cannot be used as a Via".

Solution: This behaviour occurs in version 9 of Ultiboard, and it usually happens when trying to Autoroute a single layer PCB. This problem was addressed in the Service Pack patches 9.1.219 and 9.1.221.

In order to find these patches you can look into:
Electronics Workbench Service Packs and Patches Website

In case you do not have access to the Service Packs or Patches you can workaround this problem by:
1. Changing your PCB properties to a double-sided board.
2. Use the Spreadsheet View to configure on one-click all the parts to be placed and routed on the Copper Top layer.


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Report Date: 11/16/2006
Last Updated: 11/20/2006
Document ID: 43F992XL

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