Cannot find module 'read-package-json'

[mozeum]

0 info it worked if it ends with ok
1 verbose cli [ '/Users/richard/.nvm/versions/node/v5.5.0/bin/node',
1 verbose cli '/Users/richard/.nvm/versions/node/v5.5.0/bin/npm',
1 verbose cli 'install' ]
2 info using npm@3.7.4
3 info using node@v5.5.0
4 verbose stack Error: Cannot find module 'read-package-json'
4 verbose stack at Function.Module._resolveFilename (module.js:339:15)
4 verbose stack at Function.Module._load (module.js:290:25)
4 verbose stack at Module.require (module.js:367:17)
4 verbose stack at require (internal/module.js:16:19)
4 verbose stack at Object. (/Users/richard/.nvm/versions/node/v5.5.0/lib/node_modules/npm/node_modules/read-package-tree/rpt.js:2:11)
4 verbose stack at Module._compile (module.js:413:34)
4 verbose stack at Object.Module._extensions..js (module.js:422:10)
4 verbose stack at Module.load (module.js:357:32)
4 verbose stack at Function.Module._load (module.js:314:12)
4 verbose stack at Module.require (module.js:367:17)
5 verbose cwd /Applications/MAMP/htdocs/interstoq
6 error Darwin 15.3.0
7 error argv "/Users/richard/.nvm/versions/node/v5.5.0/bin/node" "/Users/richard/.nvm/versions/node/v5.5.0/bin/npm" "install"
8 error node v5.5.0
9 error npm v3.7.4
10 error code MODULE_NOT_FOUND
11 error Cannot find module 'read-package-json'
12 error If you need help, you may report this error at:
12 error https://github.com/npm/npm/issues
13 verbose exit [ 1, true ]

Does anyone know how to fix this?

Thanks in advance.

[mozeum]

Now working, reinstalled npm.