NPM install of grunt-qunit-cov fails

[tai-admin]

I tried executing 'npm install grunt-qunit-cov' and got the following:
npm http GET https://registry.npmjs.org/grunt-qunit-cov
npm http 304 https://registry.npmjs.org/grunt-qunit-cov
npm http GET https://registry.npmjs.org/grunt-qunit-cov/-/grunt-qunit-cov-0.3.6.tgz
npm http 200 https://registry.npmjs.org/grunt-qunit-cov/-/grunt-qunit-cov-0.3.6.tgz
npm ERR! Failed to parse json
npm ERR! Unexpected token
npm ERR! File: /tmp/npm-4457/1393390352610-0.45152609748765826/package/package.json
npm ERR! Failed to parse package.json data.
npm ERR! package.json must be actual JSON, not just JavaScript.
npm ERR!
npm ERR! This is not a bug in npm.
npm ERR! Tell the package author to fix their package.json file. JSON.parse

npm ERR! System Linux 3.7.10-1.28-desktop
npm ERR! command "/usr/bin/node" "/usr/bin/npm" "install" "grunt-qunit-cov"
npm ERR! cwd /srv/www/htdocs/qunit-demo-advanced
npm ERR! node -v v0.8.12
npm ERR! npm -v 1.1.63
npm ERR! file /tmp/npm-4457/1393390352610-0.45152609748765826/package/package.json
npm ERR! code EJSONPARSE
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! /srv/www/htdocs/qunit-demo-advanced/npm-debug.log
npm ERR! not ok code 0