Hexo 使用中搭建博客过程中遇到的坑

本地执行hexo s 时报错：

WARN No layout: index.html

原因：theme 没有下载下来，经查，theme文件夹下为空。

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新建文章后，执行 hexo g 时报如下错误：

    (node:1172) [DEP0061] DeprecationWarning: fs.SyncWriteStream is deprecated.
    INFO  Start processing
    FATAL Something's wrong. Maybe you can find the solution here: http://hexo.io/docs/troubleshooting.html
    Template render error: (unknown path) [Line 21, Column 171]
      Error: Unable to call `now`, which is undefined or falsey
        at Object.exports.prettifyError (E:\sharpcj_web\node_modules\_nunjucks@2.5.2@nunjucks\src\lib.js:34:15)
        at E:\sharpcj_web\node_modules\_nunjucks@2.5.2@nunjucks\src\environment.js:486:31
        at new_cls.root [as rootRenderFunc] (eval at _compile (E:\sharpcj_web\node_modules\_nunjucks@2.5.2@nunjucks\src\environment.js:565:24),                         <anonymous>:18:3)
        at new_cls.render (E:\sharpcj_web\node_modules\_nunjucks@2.5.2@nunjucks\src\environment.js:479:15)
        at new_cls.renderString (E:\sharpcj_web\node_modules\_nunjucks@2.5.2@nunjucks\src\environment.js:327:21)
        at E:\sharpcj_web\node_modules\_hexo@3.3.7@hexo\lib\extend\tag.js:66:9
        at Promise._execute (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\debuggability.js:300:9)
        at Promise._resolveFromExecutor (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\promise.js:483:18)
        at new Promise (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\promise.js:79:10)
        at Tag.render (E:\sharpcj_web\node_modules\_hexo@3.3.7@hexo\lib\extend\tag.js:64:10)
        at Object.tagFilter [as onRenderEnd] (E:\sharpcj_web\node_modules\_hexo@3.3.7@hexo\lib\hexo\post.js:253:16)
        at E:\sharpcj_web\node_modules\_hexo@3.3.7@hexo\lib\hexo\render.js:65:19
        at tryCatcher (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\util.js:16:23)
        at Promise._settlePromiseFromHandler (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\promise.js:512:31)
        at Promise._settlePromise (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\promise.js:569:18)
        at Promise._settlePromise0 (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\promise.js:614:10)
        at Promise._settlePromises (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\promise.js:693:18)
        at Async._drainQueue (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\async.js:133:16)
        at Async._drainQueues (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\async.js:143:10)
        at Immediate.Async.drainQueues [as _onImmediate] (E:\sharpcj_web\node_modules\_bluebird@3.5.0@bluebird\js\release\async.js:17:14)
        at runCallback (timers.js:800:20)
        at tryOnImmediate (timers.js:762:5)      

原因： 文章中有不识别的字符：
原文内容中

参考 https://segmentfault.com/q/1010000006685011