Add a META.yml to the distribution. Your buildtool should be able to autogenerate it.
Remove the POD errors. You can check for POD errors automatically by including Test::Pod to your test suite.
Error: Device-SerialPort-0.20/SerialPort.pm -- Around line 2519: You can't have =items (as at line 2525) unless the first thing after the =over is an =item Around line 2606: You can't have =items (as at line 2616) unless the first thing after the =over is an =item
This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.
|Device::SerialPort||Linux/POSIX emulation of Win32::SerialPort functions.||0.20||metacpan|