I got, thanks for all! The problem was that Vendor::Amazon had: 
use base Vendor::Base;

[download]
one thing I did but couldn't associate with was: 
use strict;
use base Vendor::Base;

[download]
then I realized that if strict goes after, no problem. Later I figured all out: base is the module and Vendor::Base is the parameter, so quotes are necessary around Vendor::Base. with strict after or without strict, no problem without quote.

That's it. Thanks again.

In reply to Re: Re: Unknown compile error - desperation by luisfagundes
in thread Compilation failed, Vendor::Amazon, Vendor::BarnesNoble by luisfagundes

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