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npm install -g yarn;
C:\Users\%username%\AppData\Roaming\npm
`-- yarn@0.15.1
  +-- babel-plugin-transform-inline-imports-commonjs@1.0.0
  | `-- babel-plugin-transform-strict-mode@6.11.3
  |   `-- babel-types@6.16.0
  |     +-- esutils@2.0.2
  |     +-- lodash@4.16.4
  |     `-- to-fast-properties@1.0.2
  +-- babel-runtime@6.11.6
  | +-- core-js@2.4.1
  | `-- regenerator-runtime@0.9.5
  +-- bytes@2.4.0
  +-- camelcase@3.0.0
  +-- chalk@1.1.3
  | +-- ansi-styles@2.2.1
  | +-- escape-string-regexp@1.0.5
  | +-- has-ansi@2.0.0
  | | `-- ansi-regex@2.0.0
  | +-- strip-ansi@3.0.1
  | `-- supports-color@2.0.0
  +-- cmd-shim@2.0.2
  | `-- graceful-fs@4.1.9
  +-- commander@2.9.0
  | `-- graceful-readlink@1.0.1
  +-- death@1.0.0
  +-- debug@2.2.0
  | `-- ms@0.7.1
  +-- defaults@1.0.3
  | `-- clone@1.0.2
  +-- diff@2.2.3
  +-- github@2.5.1
  | +-- follow-redirects@0.0.7
  | | `-- stream-consume@0.1.0
  | +-- https-proxy-agent@1.0.0
  | | `-- agent-base@2.0.1
  | |   `-- semver@5.0.3
  | `-- mime@1.3.4
  +-- ini@1.3.4
  +-- invariant@2.2.1
  | `-- loose-envify@1.2.0
  |   `-- js-tokens@1.0.3
  +-- is-builtin-module@1.0.0
  | `-- builtin-modules@1.1.1
  +-- leven@2.0.0
  +-- loud-rejection@1.6.0
  | +-- currently-unhandled@0.4.1
  | | `-- array-find-index@1.0.2
  | `-- signal-exit@3.0.1
  +-- minimatch@3.0.3
  | `-- brace-expansion@1.1.6
  |   +-- balanced-match@0.4.2
  |   `-- concat-map@0.0.1
  +-- mkdirp@0.5.1
  | `-- minimist@0.0.8
  +-- node-emoji@1.4.1
  | `-- string.prototype.codepointat@0.2.0
  +-- node-gyp@3.4.0
  | +-- fstream@1.0.10
  | +-- glob@7.1.1
  | | +-- fs.realpath@1.0.0
  | | +-- inflight@1.0.5
  | | | `-- wrappy@1.0.2
  | | +-- once@1.4.0
  | | `-- path-is-absolute@1.0.1
  | +-- nopt@3.0.6
  | | `-- abbrev@1.0.9
  | +-- npmlog@3.1.2
  | | +-- are-we-there-yet@1.1.2
  | | | `-- delegates@1.0.0
  | | +-- console-control-strings@1.1.0
  | | +-- gauge@2.6.0
  | | | +-- aproba@1.0.4
  | | | +-- has-color@0.1.7
  | | | +-- has-unicode@2.0.1
  | | | +-- object-assign@4.1.0
  | | | +-- string-width@1.0.2
  | | | | +-- code-point-at@1.0.1
  | | | | `-- is-fullwidth-code-point@1.0.0
  | | | `-- wide-align@1.1.0
  | | `-- set-blocking@2.0.0
  | +-- osenv@0.1.3
  | | `-- os-tmpdir@1.0.2
  | +-- path-array@1.0.1
  | | `-- array-index@1.0.0
  | |   `-- es6-symbol@3.1.0
  | |     +-- d@0.1.1
  | |     `-- es5-ext@0.10.12
  | |       `-- es6-iterator@2.0.0
  | `-- which@1.2.11
  |   `-- isexe@1.1.2
  +-- object-path@0.11.2
  +-- proper-lockfile@1.2.0
  | +-- err-code@1.1.1
  | +-- extend@3.0.0
  | `-- retry@0.10.0
  +-- read@1.0.7
  | `-- mute-stream@0.0.6
  +-- repeating@2.0.1
  | `-- is-finite@1.0.2
  |   `-- number-is-nan@1.0.1
  +-- request@2.75.0
  | +-- aws-sign2@0.6.0
  | +-- aws4@1.5.0
  | +-- bl@1.1.2
  | | `-- readable-stream@2.0.6
  | +-- caseless@0.11.0
  | +-- combined-stream@1.0.5
  | | `-- delayed-stream@1.0.0
  | +-- forever-agent@0.6.1
  | +-- form-data@2.0.0
  | | `-- asynckit@0.4.0
  | +-- har-validator@2.0.6
  | | +-- is-my-json-valid@2.15.0
  | | | +-- generate-function@2.0.0
  | | | +-- generate-object-property@1.2.0
  | | | | `-- is-property@1.0.2
  | | | `-- jsonpointer@4.0.0
  | | `-- pinkie-promise@2.0.1
  | |   `-- pinkie@2.0.4
  | +-- hawk@3.1.3
  | | +-- boom@2.10.1
  | | +-- cryptiles@2.0.5
  | | +-- hoek@2.16.3
  | | `-- sntp@1.0.9
  | +-- http-signature@1.1.1
  | | +-- assert-plus@0.2.0
  | | +-- jsprim@1.3.1
  | | | +-- extsprintf@1.0.2
  | | | +-- json-schema@0.2.3
  | | | `-- verror@1.3.6
  | | `-- sshpk@1.10.1
  | |   +-- asn1@0.2.3
  | |   +-- assert-plus@1.0.0
  | |   +-- bcrypt-pbkdf@1.0.0
  | |   +-- dashdash@1.14.0
  | |   | `-- assert-plus@1.0.0
  | |   +-- ecc-jsbn@0.1.1
  | |   +-- getpass@0.1.6
  | |   | `-- assert-plus@1.0.0
  | |   +-- jodid25519@1.0.2
  | |   +-- jsbn@0.1.0
  | |   `-- tweetnacl@0.14.3
  | +-- is-typedarray@1.0.0
  | +-- isstream@0.1.2
  | +-- json-stringify-safe@5.0.1
  | +-- mime-types@2.1.12
  | | `-- mime-db@1.24.0
  | +-- node-uuid@1.4.7
  | +-- oauth-sign@0.8.2
  | +-- qs@6.2.1
  | +-- stringstream@0.0.5
  | +-- tough-cookie@2.3.1
  | `-- tunnel-agent@0.4.3
  +-- request-capture-har@1.1.4
  +-- rimraf@2.5.4
  +-- roadrunner@1.0.6
  +-- semver@5.3.0
  +-- strip-bom@2.0.0
  | `-- is-utf8@0.2.1
  +-- tar@2.2.1
  | +-- block-stream@0.0.9
  | `-- inherits@2.0.3
  +-- tar-stream@1.5.2
  | +-- end-of-stream@1.1.0
  | | `-- once@1.3.3
  | +-- readable-stream@2.1.5
  | | +-- buffer-shims@1.0.0
  | | +-- core-util-is@1.0.2
  | | +-- isarray@1.0.0
  | | +-- process-nextick-args@1.0.7
  | | +-- string_decoder@0.10.31
  | | `-- util-deprecate@1.0.2
  | `-- xtend@4.0.1
  +-- user-home@2.0.0
  | `-- os-homedir@1.0.2
  `-- validate-npm-package-license@3.0.1
    +-- spdx-correct@1.0.2
    | `-- spdx-license-ids@1.2.2
    `-- spdx-expression-parse@1.0.4