ReferenceError：React 中未定义窗口

Question

我为我的应用程序安装了“react-speech”包来构建文本到语音功能。但是在导入包时我收到以下错误。我做了足够的谷歌搜索来解决这个问题，但无法做到这一点。任何帮助深表感谢。

错误：

ReferenceError: window is not defined

    at new SpeakTTS (/Users/moharja/Project/React-master/node_modules/speak-tts/lib/speak-tts.js:22:48)

    at Object.<anonymous> (/Users/moharja/Project/React-master/src/components/Judgement/Landing/RightBar/Top/top.component.jsx:24:16)

    at Module._compile (internal/modules/cjs/loader.js:1201:30)

    at Module._compile (/Users/moharja/Project/React-master/node_modules/pirates/lib/index.js:99:24)

    at Module._extensions..js (internal/modules/cjs/loader.js:1221:10)

    at Object.newLoader [as .jsx] (/Users/moharja/Project/React-master/node_modules/pirates/lib/index.js:104:7)

    at Module.load (internal/modules/cjs/loader.js:1050:32)

    at Function.Module._load (internal/modules/cjs/loader.js:938:14)

    at Module.require (internal/modules/cjs/loader.js:1090:19)

    at require (internal/modules/cjs/helpers.js:75:18)

npm ERR! code ELIFECYCLE

npm ERR! errno 1

npm ERR! lm-suite-react@0.1.0 start: `rimraf build && webpack --mode production --progress --profile --color && node index.js`

npm ERR! Exit status 1

npm ERR!

npm ERR! Failed at the lm-suite-react@0.1.0 start 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/moharja/.npm/_logs/2020-10-19T17_30_09_085Z-debug.log `

注意：我也尝试使用不同的包而不是“react-speech”。但同样的错误正在发生。

Answer 1

该库与 SSR（服务器端渲染）不兼容。我猜你正在尝试使用 webpack 来做到这一点。

if (typeof window === 'undefined') {
  global.window = {}
}

我想这可能不会引发任何错误，请记住您必须在导入库之前声明这一点。