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AR# 55195

PlanAhead - [Common 17-36] Cannot write file ['project.ucf'] occurs after "reset_run -noclean_dir"


When a reset_run impl_1 -noclean_dir command  is issued on any project after Implementation, subsequent reset_run impl_1 commands do not actually reset the directory and no error is issued. Additionally, when a re-run of implementation is attempted, the following error occurs:

[Common 17-36] Cannot write file ['project.ucf']


This error occurs because PlanAhead tool creates a copy of the projects constraint files in the impl_1/.constrs folder. These .ucf files are marked as read only and cannot be edited/changed.

The workaround for this issue is to take off the read_only permissions on these .ucf files in this folder.

AR# 55195
Date Created 03/27/2013
Last Updated 04/05/2013
Status Active
Type Known Issues
  • PlanAhead