Failed to load /lib_sfdynamic_preprocessor_example.so

[zT <zzahra88 () gmail com>]

hello all , i don't know why i get this error when i run this command :
sudo snort -c /etc/snort/snort.conf --dump-dynamic-rules=/etc/snort/so_rules

result is:
Failed to load
/usr/local/lib/snort_dynamicpreprocessor//lib_sfdynamic_preprocessor_example.so:
thanks all

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