Description

I have one dangling output which is locked to one site.

BitGen is reporting the following errors:

ERROR:PhysDesignRules:368 - The signal <redun_OBUF> is incomplete. The signal is not driven by any source pin in the design.
ERROR:PhysDesignRules:10 - The network <redun_OBUF> is completely unrouted.

ERROR:Bitgen:25 - DRC detected 2 errors and 16 warnings.  Please see the previously displayed individual error or warning messages for more details.

Solution

The output "redun" is dangling. 

To resolve the issue, either remove the LOC constraints of the output or assign a value to the output.