installation - Installing npm package acs fails due to incompatibility with tar@0.1.13 -

i'm trying install package acs through npm, fails , says it's not compatible tar@0.1.13.

however when run npm -g list says installed version of tar 2.1.1.

➜  ~  npm info tar version 2.1.1 

but when try install acs fails due incompatibility tar. see logs below:

➜  ~  npm install -g acs@1.0.25  > ws@0.4.32 install        /usr/local/lib/node_modules/acs/node_modules/socket.io/node_modules/socket.io-client/node_modules/ws > (node-gyp rebuild 2> builderror.log) || (exit 0)    cxx(target) release/obj.target/bufferutil/src/bufferutil.o   solink_module(target) release/bufferutil.node   cxx(target) release/obj.target/validation/src/validation.o   solink_module(target) release/validation.node npm err! darwin 14.3.0 npm err! argv "node" "/usr/local/bin/npm" "install" "-g" "acs@1.0.25" npm err! node v0.12.7 npm err! npm  v2.13.1 npm err! code enotsup  npm err! notsup unsupported npm err! notsup not compatible version of node/npm: tar@0.1.13 npm err! notsup required: {"node":"~0.5.9 || 0.6 || 0.7 || 0.8"} npm err! notsup actual:   {"npm":"2.13.1","node":"0.12.7"}  npm err! please include following file support request: npm err!     /users/sinkensabe/npm-debug.log 

i cant figure out why says incompatible tar@0.1.13 when not version seems installed on unix system.

any appreciated!

got work, not sure why though.. removed related node , installed node homebrew. installing acs worked without problems.

followed instructions here remove node: http://tinyurl.com/qxyax6y