Why do different packages repeat in the list?

Help!
1

I’m using: SWI-Prolog version 8.4.1

SWI-Prolog packages :


resp	0.33	1512	
	Redis protocol parser and writer
resp_parse	0.1	1	
	Redis protocol parser and writer

rologp	0.12	1661	
	Simple interface to R
rologpp	0.4138	1991	
	Simple interface to R

Regards,
Frank.

2

Most likely they made a mistake adding it to the list and could not figure out how to remove it or did not realize they made a duplicate.