我收到以下错误
-----> Installing dependencies with npm
> bignum@0.5.1 install /tmp/build_1xz3suiyqvjwh/node_modules/bignum
> node-gyp configure build
sh: node-gyp: not found
npm ERR! error installing bignum@0.5.1 Error: bignum@0.5.1 install: `node-gyp configure build`
npm ERR! error installing bignum@0.5.1 `sh "-c" "node-gyp configure build"` failed with 127
npm ERR! error installing bignum@0.5.1 at ChildProcess.<anonymous> (/tmp/node-npm-Pi2L/lib/utils/exec.js:49:20)
npm ERR! error installing bignum@0.5.1 at ChildProcess.emit (events.js:70:17)
npm ERR! error installing bignum@0.5.1 at maybeExit (child_process.js:358:16)
npm ERR! error installing bignum@0.5.1 at Process.onexit (child_process.js:394:5)
npm ERR! bignum@0.5.1 install: `node-gyp configure build`
npm ERR! `sh "-c" "node-gyp configure build"` failed with 127
npm ERR!
npm ERR! Failed at the bignum@0.5.1 install script.
npm ERR! This is most likely a problem with the bignum package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-gyp configure build
npm ERR! You can get their info via:
npm ERR! npm owner ls bignum
npm ERR! There is likely additional logging output above.
npm ERR!
npm ERR! System Linux 2.6.32-343-ec2
npm ERR! command "/tmp/node-node-8eWj/bin/node" "/tmp/node-npm-Pi2L/cli.js" "install" "--production"
npm ERR! cwd /tmp/build_1xz3suiyqvjwh
npm ERR! node -v v0.6.20
npm ERR! npm -v 1.0.106
npm ERR! code ELIFECYCLE
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /tmp/build_1xz3suiyqvjwh/npm-debug.log
npm not ok
！无法使用npm安装--production依赖项 ！ Heroku推送拒绝，无法编译Node.js应用程序