D:\swat-master>perl Makefile.PL
Perl v5.20.2 required--this is only v5.20.0, stopped at Makefile.PL line 1.
BEGIN failed--compilation aborted at Makefile.PL line 1.

##</code><code>##

D:\swat-master>perlver lib\swat.pm


   ------------------------------------------
 | file        | explicit | syntax | external |
 | ------------------------------------------ |
 | lib\swat.pm | ~        | v5.6.0 | n/a      |
 | ------------------------------------------ |
 | Minimum explicit version : ~                             |
 | Minimum syntax version   : v5.6.0                        |
 | Minimum version of perl  : v5.6.0                        |
   ------------------------------------------


##</code><code>##

D:\swat-master>perlver bin\swat


   ---------------------------------------
 | file     | explicit | syntax | external |
 | --------------------------------------- |
 | bin\swat | ~        | v5.9.5 | n/a      |
 | --------------------------------------- |
 | Minimum explicit version : ~                             |
 | Minimum syntax version   : v5.9.5                        |
 | Minimum version of perl  : v5.9.5                        |
   ---------------------------------------