$sudo cnpm install happend this problems

[lhuazai]

4 warnings and 1 error generated.
make: *** [Release/obj.target/contextify/src/contextify.o] Error 1
gyp ERR! build error
gyp ERR! stack Error: make failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/usr/local/lib/node_modules/cnpm/node_modules/node-gyp/lib/build.js:258:23)
gyp ERR! stack at ChildProcess.emit (events.js:180:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:209:12)
gyp ERR! System Darwin 17.5.0
gyp ERR! command "/usr/local/Cellar/node/8.9.0/bin/node" "/usr/local/lib/node_modules/cnpm/node_modules/npminstall/node-gyp-bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/xxxxxxxx/xxxxxxxx/OnlineJudgeFE/node_modules/_contextify@0.1.15@contextify
gyp ERR! node -v v9.10.1
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
✖ Install fail! Error: Run "sh -c node-gyp rebuild" error, exit code 1
Error: Run "sh -c node-gyp rebuild" error, exit code 1
at ChildProcess.proc.on.code (/usr/local/lib/node_modules/cnpm/node_modules/runscript/index.js:74:21)
at ChildProcess.emit (events.js:180:13)
at maybeClose (internal/child_process.js:936:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)
npminstall version: 3.3.0
npminstall args: /usr/local/Cellar/node/8.9.0/bin/node /usr/local/lib/node_modules/cnpm/node_modules/npminstall/bin/install.js --china --userconfig=/Users/shihualiu/.cnpmrc --disturl=https://npm.taobao.org/mirrors/node --registry=https://registry.npm.taobao.org

please give some tips,thank you

[virusdefender]

https://github.com/QingdaoU/OnlineJudgeFE#get-started

Install nodejs v6.11 first.