webpack 错误:自定义关键字定义无效:数据/错误应该是布尔值

Question

我正在使用webpack捆绑两个js文件(test.js和index.js(这就是测试.js的样子

console.log("i'm in test.js");
export default 35;

这就是索引.js的样子

const num = require("./test");
console.log("Successfully export the number: " + num);

这就是我的 package.json 文件的样子

 "scripts": {
    "dev": "webpack"
  },
 "devDependencies": {
    "webpack": "^4.29.3",
    "webpack-cli": "^3.2.3"
  }

当我运行命令"npm run dev"时，我收到此错误，我的两个文件都正常工作。

> forkify@1.0.0 dev C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarter
> webpack
C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_moduleswebpack-clibincli.js:231
                                throw err;
                                ^
Error: custom keyword definition is invalid: data/errors should be boolean
    at Ajv.addKeyword (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesajvlibkeyword.js:65:13)
    at module.exports (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesajv-errorsindex.js:10:7)
    at Object.<anonymous> (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesschema-utilssrcvalidateOptions.js:22:1)
    at Module._compile (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:178:30)
    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 Module.require (module.js:596:17)
    at require (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:159:20)
    at Object.<anonymous> (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesschema-utilssrcindex.js:7:25)
    at Module._compile (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:178:30)
    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 Module.require (module.js:596:17)
    at require (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:159:20)
    at Object.<anonymous> (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_moduleswebpacklibSourceMapDevToolPlugin.js:13:25)
    at Module._compile (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:178:30)
    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 Module.require (module.js:596:17)
    at require (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:159:20)
    at Object.<anonymous> (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_moduleswebpacklibWebpackOptionsApply.js:16:32)
    at Module._compile (C:UsersSeinfeldDesktopjscomplete-javascript-course-master9-forkifystarternode_modulesv8-compile-cachev8-compile-cache.js:178:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! forkify@1.0.0 dev: `webpack`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the forkify@1.0.0 dev 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!     C:UsersSeinfeldAppDataRoamingnpm-cache_logs2019-02-10T08_30_11_517Z-debug.log````
Anyone who knows the answer please tell me.
Thanks in advance

Answer 1

它实际上是来自 webpack 本身的错误。您可以降级到另一个版本。

这是问题所在

如果你使用纱线

在下面添加到包.json

  "resolutions": {
    "ajv": "6.8.1"
  }

然后运行yarn install

如果使用 npm

npm uninstall ajv
npm install ajv@6.8.1