聚合物CLI安装挂在壁虎驱动程序

我正在尝试安装polymer-cli但它挂在这里:

 node_modules/polymer-cli/node_modules/wct-local > node scripts/postinstall.js ---------- selenium-standalone installation starting ---------- --- selenium install: from: https://selenium-release.storage.googleapis.com/2.53/selenium-server-standalone-2.53.1.jar to: /Users/limjiewmeng/.nvm/versions/node/v6.4.0/lib/node_modules/polymer-cli/node_modules/selenium-standalone/.selenium/selenium-server/2.53.1-server.jar --- chrome install: from: https://chromedriver.storage.googleapis.com/2.23/chromedriver_mac64.zip to: /Users/limjiewmeng/.nvm/versions/node/v6.4.0/lib/node_modules/polymer-cli/node_modules/selenium-standalone/.selenium/chromedriver/2.23-x64-chromedriver --- firefox install: from: https://github.com/mozilla/geckodriver/releases/download/v0.10.0/geckodriver-v0.10.0-macos.tar.gz to: /Users/limjiewmeng/.nvm/versions/node/v6.4.0/lib/node_modules/polymer-cli/node_modules/selenium-standalone/.selenium/geckodriver/0.10.0-x64-geckodriver 

我该如何解决这个问题? 我已经尝试通过NVM使用不同的Node版本,v4和v6。 试过安装旧版本0.14 vs 0.16。 两者似乎都有同样的问题。 尝试下载geckodriver( https://github.com/mozilla/geckodriver/releases/download/v0.10.0/geckodriver-v0.10.0-macos.tar.gz ),没有问题在Chrome上。 怎么了?

我的Mac上有同样的问题。 最后这对我工作:

 sudo npm cache clean sudo npm install npm@latest -g sudo npm install -g polymer-cli