Configuring P/PE/PEVANS/IO-Async-0.802.tar.gz with Build.PL Checking prerequisites... test_requires: ! Test::Future::IO::Impl is not installed ! Test::Metrics::Any is not installed ERRORS/WARNINGS FOUND IN PREREQUISITES. You may wish to install the versions of the modules indicated above before proceeding with this installation .... Running Build install for PEVANS/Future-IO-0.13.tar.gz Building Future-IO Installing C:\STRAWB~1\perl\site\lib\Future\IO.pm Installing C:\STRAWB~1\perl\site\lib\Future\IO\ImplBase.pm Installing C:\STRAWB~1\perl\site\lib\Future\IO\System.pm Installing C:\STRAWB~1\perl\site\lib\Test\Future\IO\Impl.pm PEVANS/Future-IO-0.13.tar.gz C:\Strawberry\perl\bin\perl.exe ./Build install --uninst 1 -- OK Stopping: 'install' failed for 'Test::Future::IO::Impl'.