snort -r output error

[anvin igcar <avigcar () gmail com>]

Snort 2.9.0.3
Why am I getting this error?
What do I do?

[root@testpc /]# snort -r /var/log/snort/snort.log.1294747044
Running in packet dump mode

        --== Initializing Snort ==--
Initializing Output Plugins!
pcap DAQ configured to read-file.
ERROR: Can't initialize DAQ pcap (-1) - bad dump file format
Fatal Error, Quitting..

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