在运行npm install时出现以下错误
npm ERR! node v6.11.4
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! xxhash@0.2.4 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the xxhash@0.2.4 install script 'node-gyp rebuild'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the xxhash package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-gyp rebuild
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs xxhash
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls xxhash
npm ERR! There is likely additional logging output above.
我检查了有关xcode的所有内容，也检查了python。 我不知道该怎么办。请帮助