building cross tool chain hanged

I am building cross toolchain through ct-ng. when I run ./ct-ng build it is
getting hanged (till now 40 minutes) at 'Retrieving needed toolchain
components tarballs'. Am I doing something wrong ?

Subversion was missing & uname -m creating issues,  after hours it gave me
error. So any one facing the problem must have subversion and correct
architecture to build toolchain