Javascript 为什么我会遇到这个错误：模块构建失败（来自./node_modules/babel loader/lib/index.js）：语法错误意外标记，预期为“&引用；

我在

javascript/packs/style.js中有这段代码

我在

application.js

中需要它，使用'require（“packs/style”）。但是当我刷新页面时，我在控制台中遇到了这个错误

Uncaught Error: Module build failed (from ./node_modules/babel-loader/lib/index.js):
SyntaxError: /home/maryan/Desktop/workspace/collabfield/app/javascript/posts/style.js: Unexpected token, expected "," (20:0)

  18 |
  19 |
> 20 | var colorSet = randomColorSet();
     | ^
  21 | var mode = Math.floor(Math.random() * 2);
  22 |
  23 | function randomColorSet() {
    at Parser._raise (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:776)
    at Parser.raiseWithData (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:769)
    at Parser.raise (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:737)
    at Parser.unexpected (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:9735)
    at Parser.expect (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:9721)
    at Parser.parseCallExpressionArguments (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10890)
    at Parser.parseCoverCallAndAsyncArrowHead (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10816)
    at Parser.parseSubscript (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10752)
    at Parser.parseSubscripts (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10725)
    at Parser.parseExprSubscripts (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10714)
    at Parser.parseUpdate (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10688)
    at Parser.parseMaybeUnary (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10666)
    at Parser.parseExprOps (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10523)
    at Parser.parseMaybeConditional (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10497)
    at Parser.parseMaybeAssign (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10460)
    at Parser.parseExpressionBase (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10405)
    at :3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10399
    at Parser.allowInAnd (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12098)
    at Parser.parseExpression (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:10399)
    at Parser.parseStatementContent (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12390)
    at Parser.parseStatement (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12259)
    at Parser.parseBlockOrModuleBlockBody (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12845)
    at Parser.parseBlockBody (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12836)
    at Parser.parseProgram (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12190)
    at Parser.parseTopLevel (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:12181)
    at Parser.parse (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:13892)
    at parse (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/parser/lib/index.js:13944)
    at parser (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/core/lib/parser/index.js:54)
    at parser.next (<anonymous>)
    at normalizeFile (:3000/home/maryan/Desktop/workspace/collabfield/node_modules/@babel/core/lib/transformation/normalize-file.js:55)
    at Object../app/javascript/posts/style.js (application.js:16)
    at __webpack_require__ (bootstrap:19)
    at Module../app/javascript/packs/application.js (application.js:1)
    at __webpack_require__ (bootstrap:19)
    at bootstrap:83
    at bootstrap:83
./app/javascript/posts/style.js @ application.js:16
__webpack_require__ @ bootstrap:19
./app/javascript/packs/application.js @ application.js:1
__webpack_require__ @ bootstrap:19
(anonymous) @ bootstrap:83
(anonymous) @ bootstrap:83

我正在Rails 6.0.3.2上构建它

我不知道我的代码是不是错了，或者是有什么别的

---

非常感谢您的帮助或想法……

此./node_modules/babel loader/lib/index.js）模块构建错误肯定会随机出现在rails 6的Webpacker中。据我所知，rails 6中的整个webpacker设置非常脆弱。为了解决这个问题，我进行了一次彻底的重新安装：

yarn remove @rails/webpacker
yarn remove webpack webpack-cli webpack-dev-server
rm -fr node_modules
rm -fr public/packs
bundle exec rails webpacker:install
# REMOVE any invalid babel preset from package.json added by "webpacker:install"
yarn add node-releases
bundle exec rails webpacker:compile

使用

require（“packs/style”）

#成功

yarn remove @rails/webpacker
yarn remove webpack webpack-cli webpack-dev-server
rm -fr node_modules
rm -fr public/packs
bundle exec rails webpacker:install
# REMOVE any invalid babel preset from package.json added by "webpacker:install"
yarn add node-releases
bundle exec rails webpacker:compile