前言
更换了新主题，在hexo g和hexo s的时候总会报如下错误，在主题github issues逛了一圈后，感觉应该是我的hexo版本太老了。
➜ hexo s
(node:64285) [DEP0061] DeprecationWarning: fs.SyncWriteStream is deprecated.
INFO Start processing
ERROR Process failed: layout/archive.ejs
SyntaxError: Invalid or unexpected token in "/Users/lanvnal/Files/blog/themes/hexo-theme-matery/layout/archive.ejs"
at new Function ()
at Object.exports.compile (/Users/lanvnal/Files/blog/node_modules/ejs/lib/ejs.js:242:14)
at Function.ejsRenderer.compile (/Users/lanvnal/Files/blog/node_modules/hexo-renderer-ejs/lib/renderer.js:11:14)
at Theme._View.View.View._precompile (/Users/lanvnal/Files/blog/node_modules/hexo/lib/theme/view.js:117:31)
决定升级hexo版本，但是没找到很明确的升级hexo的文章，遂做一下记录。
升级
1、全局升级hexo-cli，先hexo version查看当前版本，然后npm i hexo-cli -g，再次hexo version查看是否升级成功。
npm i hexo-cli -g
npm update
hexo version
2、使用npm install -g npm-check和npm-check，检查系统中的插件是否有升级的，可以看到自己前面都安装了那些插件
npm install -g npm-check
npm-check
3、使用npm install -g npm-upgrade和npm-upgrade，升级系统中的插件
npm install -g npm-upgrade
npm-upgrade
4、使用npm update -g和npm update --save
更新全局包与更新生产环境依赖包
npm update <name> -g
npm update <name> --save
save参数：npm install X –save:
会把X包安装到
node_modules目录中会在
package.json的dependencies属性下添加X之后运行
npm install命令时，会自动安装X到node_modules目录中
如果不加save参数的话，之后把X包安装到node_modules目录中，不会添加到dependencies文件中。再查看hexo文件夹下面的dependencies文件,可以看到hexo的版本已经更新了。
{
"name": "hexo-site",
"version": "0.0.0",
"private": true,
"hexo": {
"version": "3.7.1"
},
"dependencies": {
"hexo": "^3.7.1",
"hexo-deployer-git": "^0.3.1",
"hexo-fs": "^0.2.3",
"hexo-generator-archive": "^0.1.5",
"hexo-generator-category": "^0.1.3",
"hexo-generator-index": "^0.2.1",
"hexo-generator-tag": "^0.2.0",
"hexo-renderer-ejs": "^0.3.1",
"hexo-renderer-marked": "^0.3.2",
"hexo-renderer-stylus": "^0.3.3",
"hexo-server": "^0.3.2"
}
}
PS：第四步遇到了错误，错误提示如下：
> fsevents@1.2.11 install /Users/lanvnal/Files/blog/node_modules/hexo/node_modules/fsevents
> node-gyp rebuild
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
No receipt for 'com.apple.pkg.CLTools_Executables' found at '/'.
No receipt for 'com.apple.pkg.DeveloperToolsCLILeo' found at '/'.
No receipt for 'com.apple.pkg.DeveloperToolsCLI' found at '/'.
gyp: No Xcode or CLT version detected!
其实已经安装过了xcode cli，但是这里还是报错了，估计和苹果新系统有关，重装就好了，操作如下：
如果像以前一样执行xcode-select --install会有如下报错：
xcode-select: error: command line tools are already installed, use "Software Update" to install updates
解决办法：
sudo rm -rf /Library/Developer/CommandLineTools
xcode-select --install
然后再执行第四步，完美升级。
