internal error: Cannot open file. Aborted

when I start bro, I get the following error.

==== stderr.log
listening on eth0, capture length 8192 bytes

internal error: Cannot open file
/home/shahzaib/bro/share/broctl/scripts/run-bro: line 60: 8757 Aborted nohup $mybro $@

How can this error be fixed?

Did you install over top of an older release?

  .Seth

No, I just installed bro on fresh copy of linux ubuntu.