polymer-cli安装

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1. 安装命令：

    npm install -g polymer-cli
   

2. 执行后安装失败

    $ npm install -g polymer-cli
    npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
    npm ERR! path /usr/local/lib/node_modules
    npm ERR! code EACCES
    npm ERR! errno -13
    npm ERR! syscall access
    npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules'
    npm ERR!  { Error: EACCES: permission denied, access '/usr/local/lib/node_modules'
    npm ERR!   stack: 'Error: EACCES: permission denied, access \'/usr/local/lib/node_modules\'',
    npm ERR!   errno: -13,
    npm ERR!   code: 'EACCES',
    npm ERR!   syscall: 'access',
    npm ERR!   path: '/usr/local/lib/node_modules' }
    npm ERR! 
    npm ERR! Please try running this command again as root/Administrator.
    
    npm ERR! A complete log of this run can be found in:
    npm ERR!     /Users/wangzhen/.npm/_logs/2018-07-28T12_18_25_662Z-debug.log
   

3. 修改后的执行办法：

    $ sudo npm install -g polymer-cli
   

4. 执行后失败：

    Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/polymer-cli/node_modules/wd/build'
    at Object.fs.mkdirSync (fs.js:885:18)
    at sync (/usr/local/lib/node_modules/polymer-cli/node_modules/mkdirp/index.js:71:13)
    at Object.<anonymous> (/usr/local/lib/node_modules/polymer-cli/node_modules/wd/scripts/build-browser-scripts.js:6:1)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:191:16)
    npm ERR! code ELIFECYCLE
    npm ERR! errno 1
    npm ERR! wd@1.10.1 install: `node scripts/build-browser-scripts`
    npm ERR! Exit status 1
    npm ERR! 
    npm ERR! Failed at the wd@1.10.1 install script.
    npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
       ╭─────────────────────────────────────╮
       │                                     │
       │   Update available 5.6.0 → 6.2.0    │
       │     Run npm i -g npm to update      │
       │                                     │
       ╰─────────────────────────────────────╯
   

5. 修改后的执行办法

    & sudo npm i -g npm
   

6. 执行安装

    $ sudo npm install -g polymer-cli
    /usr/local/bin/polymer -> /usr/local/lib/node_modules/polymer-cli/bin/polymer.js
    
    > fsevents@1.2.4 install /usr/local/lib/node_modules/polymer-cli/node_modules/fsevents
    > node install
    
    [fsevents] Success: "/usr/local/lib/node_modules/polymer-cli/node_modules/fsevents/lib/binding/Release/node-v57-darwin-x64/fse.node" already installed
    Pass --update-binary to reinstall or --build-from-source to recompile
    
    > wd@1.10.1 install /usr/local/lib/node_modules/polymer-cli/node_modules/wd
    > node scripts/build-browser-scripts
    
    /usr/local/lib/node_modules/polymer-cli/node_modules/mkdirp/index.js:90
                        throw err0;
                        ^
    
    Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/polymer-cli/node_modules/wd/build'
        at Object.fs.mkdirSync (fs.js:885:18)
        at sync (/usr/local/lib/node_modules/polymer-cli/node_modules/mkdirp/index.js:71:13)
        at Object.<anonymous> (/usr/local/lib/node_modules/polymer-cli/node_modules/wd/scripts/build-browser-scripts.js:6:1)
        at Module._compile (module.js:652:30)
        at Object.Module._extensions..js (module.js:663:10)
        at Module.load (module.js:565:32)
        at tryModuleLoad (module.js:505:12)
        at Function.Module._load (module.js:497:3)
        at Function.Module.runMain (module.js:693:10)
        at startup (bootstrap_node.js:191:16)
    npm ERR! code ELIFECYCLE
    npm ERR! errno 1
    npm ERR! wd@1.10.1 install: `node scripts/build-browser-scripts`
    npm ERR! Exit status 1
    npm ERR! 
    npm ERR! Failed at the wd@1.10.1 install script.
    npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
    
    npm ERR! A complete log of this run can be found in:
    npm ERR!     /Users/wangzhen/.npm/_logs/2018-07-28T12_21_07_982Z-debug.log
   

7. 最后的执行办法：

    $ sudo npm install --unsafe-perm -g polymer-cli