One of the things developers often struggle with is dependency resolution.
cpanm WWW::Curl::Easy -v
Configuring WWW-Curl-4.15 ... Locating required external dependency bin:curl-config... missing.
Unresolvable missing external dependency.
Please install 'curl-config' seperately and try again.
NA: Unable to build distribution on this platform.
This used to set me on a wild google chase, nowadays I just go to: