known issue related to warning: meteor npm install --save bcrypt

[veeramarni]

W20170211-16:54:02.663(-5)? (STDERR) Note: you are using a pure-JavaScript implementation of bcrypt.W20170211-16:54:02.664(-5)? (STDERR) approximately three times slower than the native implementation.
W20170211-16:54:02.665(-5)? (STDERR) In order to use the native implementation instead, run
W20170211-16:54:02.665(-5)? (STDERR)
W20170211-16:54:02.666(-5)? (STDERR)   meteor npm install --save bcrypt
W20170211-16:54:02.666(-5)? (STDERR)
W20170211-16:54:02.666(-5)? (STDERR) in the root directory of your application.
webpack built ffc7928813da28dfebb0 in 68018ms
ç^C
bash-3.2$ meteor npm install --save bcrypt

> bcrypt@1.0.2 install /Users/veeramarni/Documents/eclipse/workspace/phoneapps/development/projects/meteor-react-redu
x-webpack-kit/app/node_modules/bcrypt
> node-pre-gyp install --fallback-to-build

node-pre-gyp ERR! Tried to download(404): https://github.com/kelektiv/node.bcrypt.js/releases/download/v1.0.2/bcrypt_
lib-v1.0.2-node-v46-darwin-x64.tar.gz
node-pre-gyp ERR! Pre-built binaries not found for bcrypt@1.0.2 and node@4.6.2 (node-v46 ABI) (falling back to source
 compile with node-gyp)
  CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
  CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt.o
  CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt_node.o
  SOLINK_MODULE(target) Release/bcrypt_lib.node
  COPY /Users/veeramarni/Documents/eclipse/workspace/phoneapps/development/projects/meteor-react-redux-webpack-kit/ap
p/node_modules/bcrypt/lib/binding/bcrypt_lib.node
  TOUCH Release/obj.target/action_after_build.stamp

Solution:
try installing
npm install node-gyp -g
meteor npm install --save bcrypt

Ref:meteor/meteor#7568