节点。ubuntu16.04上的js-无法安装和运行nodemon

我无法安装和运行nodemon。我正在运行node。ubuntu 16.04上的js。。我的api正在工作。安装的LIB包括:

sven@sven-MS-7264:~/Projects/APIDemo$ npm -g ls --depth=0
/usr/lib
├── npm@5.6.0
└── pm2@2.9.3

npm ERR! invalid: minizlib@1.0.3 /usr/lib/node_modules/npm/node_modules/tar/node_modules/minizlib

sven@sven-MS-7264:~/Projects/APIDemo$ npm ls --depth=0
apidemo@1.0.0 /home/sven/Projects/APIDemo
├── body-parser@1.18.2
├── cookie-parser@1.4.3
├── debug@3.1.0
├── ejs@2.5.7
├── express@4.16.2
├── morgan@1.9.0
├── mysql@2.15.0
└── serve-favicon@2.4.5

但当我尝试在全球范围内安装nodemon时,我得到了以下信息:

sven@sven-MS-7264:~/Projects/APIDemo$ npm install -g nodemon
npm WARN registry Using stale data from https://registry.npmjs.org/ because the host is inaccessible -- are you offline?
npm WARN registry Using stale package data from https://registry.npmjs.org/ due to a request error during revalidation.
npm WARN checkPermissions Missing write access to /usr/lib/node_modules
npm ERR! path /usr/lib/node_modules
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall access
npm ERR! Error: EACCES: permission denied, access '/usr/lib/node_modules'
npm ERR!  { Error: EACCES: permission denied, access '/usr/lib/node_modules'
npm ERR!   stack: 'Error: EACCES: permission denied, access \'/usr/lib/node_modules\'',
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'access',
npm ERR!   path: '/usr/lib/node_modules' }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

文件夹权限如下所示:

sven@sven-MS-7264:~/Projects$ ls -la
total 20
drwxrwxr-x  5 sven sven 4096 Feb 20 09:50 .
drwxr-xr-x 52 sven sven 4096 Feb 20 13:59 ..
drwx------  7 sven sven 4096 Feb 20 16:27 APIDemo

如何安装和运行nodemon?