npm error report

error.txt

Unhandled rejection Error: Argument #2: Expected string but got null5
    at addDependency (/usr/local/lib/node_modules/npm/lib/install/deps.js:515:3)
    at /usr/local/lib/node_modules/npm/lib/install/deps.js:463:5
    at /usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:52:35
    at Array.forEach (native)
    at /usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:52:11
    at Array.forEach (native)
    at asyncMap (/usr/local/lib/node_modules/npm/node_modules/slide/lib/async-map.js:51:8)
    at loadDeps (/usr/local/lib/node_modules/npm/lib/install/deps.js:455:3)
    at Array.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/slide/lib/bind-actor.js:15:8)
    at LOOP (/usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:15:14)
    at /usr/local/lib/node_modules/npm/node_modules/slide/lib/chain.js:18:7
    at /usr/local/lib/node_modules/npm/lib/install/and-finish-tracker.js:8:8
    at resolveBranchDeps.then (/usr/local/lib/node_modules/npm/lib/install/deps.js:419:11)
    at tryCatcher (/usr/local/lib/node_modules/npm/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/usr/local/lib/node_modules/npm/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (/usr/local/lib/node_modules/npm/node_modules/bluebird/js/release/promise.js:569:18)
    
npm ERR! cb() never called!

npm ERR! This is an error with npm itself. Please report this error at:
npm ERR!     <https://github.com/npm/npm/issues>



0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node',
1 verbose cli   '/usr/local/bin/npm',
1 verbose cli   'rm',
1 verbose cli   '-g',
1 verbose cli   'serve' ]
2 info using npm@5.0.0
3 info using node@v6.9.5
4 silly install loadCurrentTree
5 silly install readGlobalPackageData
6 silly install loadIdealTree
7 silly install cloneCurrentTreeToIdealTree
8 silly install loadShrinkwrap
9 silly uninstall loadAllDepsIntoIdealTree
10 silly install loadAllDepsIntoIdealTree
11 error cb() never called!
12 error This is an error with npm itself. Please report this error at:
13 error <https://github.com/npm/npm/issues>