疑难杂症：incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line at…

运行环境 Runtime environment

操作系统： Windos10  
IDE: webStrom 2021.3.1 x64  
语言: nodeJs v14.15.4
框架: hexo "5.3.0"
theme: [Butterfly  "3.6.1"]

症状

写完博客，使用命令

hexo clean&&hexo g&&hexo s

出现了报错(节选)：

ERROR {
  err: YAMLException: incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line at line 5, column 52:
       ... +报错pyppeteer.errors.BrowserError: Browser closed unexpectedly:解决办法
                                           ^
      at generateError (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:167:10)
      at throwError (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:173:9)
      at readBlockMapping (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:1027:9)
      at composeNode (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:1359:12)
      at readDocument (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:1525:3)
      at loadDocuments (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:1588:5)
      at Object.load (F:\workSpace\myHexo\node_modules\js-yaml\lib\js-yaml\loader.js:1614:19)
      at parseYAML (F:\workSpace\myHexo\node_modules\hexo-front-matter\lib\front_matter.js:69:23)
      at parse (F:\workSpace\myHexo\node_modules\hexo-front-matter\lib\front_matter.js:50:12)
      at F:\workSpace\myHexo\node_modules\hexo\lib\plugins\processor\post.js:51:20
      at tryCatcher (F:\workSpace\myHexo\node_modules\bluebird\js\release\util.js:16:23)
      at Promise._settlePromiseFromHandler (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:544:35)
      at Promise._settlePromise (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:604:18)
      at Promise._settlePromise0 (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:649:10)
      at Promise._settlePromises (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:729:18)
      at Promise._fulfill (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:673:18)
      at PromiseArray._resolve (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise_array.js:127:19)
      at PromiseArray._promiseFulfilled (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise_array.js:145:14)
      at PromiseArray._iterate (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise_array.js:115:31)
      at PromiseArray.init [as _init] (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise_array.js:79:10)
      at Promise._settlePromise (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:601:21)
      at Promise._settlePromise0 (F:\workSpace\myHexo\node_modules\bluebird\js\release\promise.js:649:10) {
    reason: 'incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line',
    mark: Mark {
      name: null,
      buffer: "title: 'scrapy+报错pyppeteer.errors.BrowserError Browser closed unexpectedly 的解决办法'\n" +
        'top_img: /customize/img/top/debug.jpg\n' +
        'cover: /customize/img/top/debug.jpg\n' +
        'comments: true\n' +
        'description: scrapy+报错pyppeteer.errors.BrowserError: Browser closed unexpectedly:解决办法\n' +
        'keywords:\n' +
        '    - scrapy\n' +
        '    - python\n' +
        '    - pyppeteer\n' +
        'tags:\n' +
        '    - scrapy\n' +
        '    - python\n' +
        '    - pyppeteer\n' +
        'categories:\n' +
        '    - 技术博文\n' +
        'date: 2021-05-12 10:06:18\n' +
        'updated: 2021-05-12 10:06:18\n' +
        '\x00',
      position: 222,
      line: 4,
      column: 51
    }
  }