Could not bazel

[minjac]

Hi, this is a great work. But when I run the command "bazel build -c opt //tensorflow/examples/android:tensorflow_demo", it get some wrong as follow:

ERROR: D:/rstensorflow-master/WORKSPACE:3:1: name 'http_archive' is not defined
ERROR: Error evaluating WORKSPACE file
ERROR: error loading package '': Encountered error while reading extension file 'closure/defs.bzl': no such package '@io_bazel_rules_closure//closure': error loading package 'external': Could not load //external packag
e
ERROR: error loading package '': Encountered error while reading extension file 'closure/defs.bzl': no such package '@io_bazel_rules_closure//closure': error loading package 'external': Could not load //external packag
e
INFO: Elapsed time: 0.127s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (0 packages loaded)

Thank! @nesl-legacy