If I understand it correctly, "Unknown error" results when a require fails in a way that should have set $@ but didn't. You can often get to the actual error by feeding perl directly the .pm file (.../Vendor/Amazon.pm or BarnesNoble.pm, in this case). You should report this using perlbug.

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

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