I do not understand why using MIN_PERL_VERSION shows that message

Because your version of ExtUtils::MakeMaker is older than 6.48

I am now using a simple use 5.008001; at the start of Makefile.PL.

It's not as good since the info won't make into META.yml.

In reply to Re^4: specify minimum perl version with Makefile.PL? by ikegami
in thread specify minimum perl version with Makefile.PL? by johannp

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