npm WARN unmet dependency    /usr/local/lib/node_modules/bower/node_modules/tar-fs/node_modules/pump/node_modules/end-of-stream requires once@'~1.3.0' but will load
npm WARN unmet dependency /usr/local/lib/node_modules/bower/node_modules/tar-fs/node_modules/pump/node_modules/once,
npm WARN unmet dependency which is version 1.2.0