Unable to build prerequisite module: Crypt-Rijndael (0)
Unable to build prerequisite module: Digest-SHA (0)
Unable to build prerequisite module: Encoding-BER (0)
Unable to build prerequisite module: Crypt-CBC (0)
Unable to build prerequisite module: Math-GMPz (0)


Crypt-ECDSA could not be built due to the above failed prerequisites.