yarn start v0.27.5
$ react-scripts start
module.js:471
throw err;
^
Error: Cannot find module '../scripts/start'
at Function.Module._resolveFilename (module.js:469:15)
at Function.resolve (internal/module.js:27:19)
at Object.<anonymous> (/home/song/src/JavaProject/demo-app/goods-front/node_modules/.bin/react-scripts:30:25)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:389:7)
error Command failed with exit code 1.
先说明我是Linux环境
导致该问的原因是：node_modules/.bin 目录下本来应该都是链接文件，但不知为何，在创建工程时都变成了实体文件，导致js中的相对路径取值错误，所以就报找不到 module的错误。
正确情况下使用(进入node_modules/.bin目录) 使用 ls -al 命令查看可以发现都是 ln 文件。
song@u:~/src/JavaProject/demo-app/goods-front1/node_modules/.bin$ ls -al
total 40
drwxrwxr-x 2 song song 4096 9月 8 15:55 .
drwxrwxr-x 891 song song 36864 9月 8 15:56 ..
lrwxrwxrwx 1 song song 18 9月 8 15:55 acorn -> ../acorn/bin/acorn
lrwxrwxrwx 1 song song 26 9月 8 15:55 ansi-html -> ../ansi-html/bin/ansi-html
lrwxrwxrwx 1 song song 25 9月 8 15:55 babylon -> ../babylon/bin/babylon.js
lrwxrwxrwx 1 song song 48 9月 8 15:55 browserslist -> ../autoprefixer/node_modules/browserslist/cli.js
lrwxrwxrwx 1 song song 20 9月 8 15:55 cssesc -> ../cssesc/bin/cssesc
lrwxrwxrwx 1 song song 16 9月 8 15:55 csso -> ../csso/bin/csso
lrwxrwxrwx 1 song song 34 9月 8 15:55 detect -> ../detect-port-alt/bin/detect-port
lrwxrwxrwx 1 song song 34 9月 8 15:55 detect-port -> ../detect-port-alt/bin/detect-port
lrwxrwxrwx 1 song song 15 9月 8 15:55 errno -> ../errno/cli.js
lrwxrwxrwx 1 song song 29 9月 8 15:55 escodegen -> ../escodegen/bin/escodegen.js
lrwxrwxrwx 1 song song 30 9月 8 15:55 esgenerate -> ../escodegen/bin/esgenerate.js
lrwxrwxrwx 1 song song 23 9月 8 15:55 eslint -> ../eslint/bin/eslint.js
lrwxrwxrwx 1 song song 25 9月 8 15:55 esparse -> ../esprima/bin/esparse.js
lrwxrwxrwx 1 song song 28 9月 8 15:55 esvalidate -> ../esprima/bin/esvalidate.js
lrwxrwxrwx 1 song song 28 9月 8 15:55 handlebars -> ../handlebars/bin/handlebars
lrwxrwxrwx 1 song song 12 9月 8 15:55 he -> ../he/bin/he
lrwxrwxrwx 1 song song 23 9月 8 15:55 html-minifier -> ../html-minifier/cli.js
lrwxrwxrwx 1 song song 21 9月 8 15:55 internal-ip -> ../internal-ip/cli.js
lrwxrwxrwx 1 song song 23 9月 8 15:55 jest -> ../jest-cli/bin/jest.js
lrwxrwxrwx 1 song song 35 9月 8 15:55 jest-runtime -> ../jest-runtime/bin/jest-runtime.js
lrwxrwxrwx 1 song song 18 9月 8 15:55 jsesc -> ../jsesc/bin/jsesc
lrwxrwxrwx 1 song song 19 9月 8 15:55 json5 -> ../json5/lib/cli.js
lrwxrwxrwx 1 song song 25 9月 8 15:55 js-yaml -> ../js-yaml/bin/js-yaml.js
lrwxrwxrwx 1 song song 22 9月 8 15:55 loose-envify -> ../loose-envify/cli.js
lrwxrwxrwx 1 song song 32 9月 8 15:55 miller-rabin -> ../miller-rabin/bin/miller-rabin
lrwxrwxrwx 1 song song 14 9月 8 15:55 mime -> ../mime/cli.js
lrwxrwxrwx 1 song song 20 9月 8 15:55 mkdirp -> ../mkdirp/bin/cmd.js
lrwxrwxrwx 1 song song 23 9月 8 15:55 multicast-dns -> ../multicast-dns/cli.js
lrwxrwxrwx 1 song song 14 9月 8 15:55 rc -> ../rc/index.js
lrwxrwxrwx 1 song song 37 9月 8 15:55 react-scripts -> ../react-scripts/bin/react-scripts.js
lrwxrwxrwx 1 song song 25 9月 8 15:55 regjsparser -> ../regjsparser/bin/parser
lrwxrwxrwx 1 song song 16 9月 8 15:55 rimraf -> ../rimraf/bin.js
lrwxrwxrwx 1 song song 18 9月 8 15:55 sane -> ../sane/src/cli.js
lrwxrwxrwx 1 song song 20 9月 8 15:55 semver -> ../semver/bin/semver
lrwxrwxrwx 1 song song 16 9月 8 15:55 sha.js -> ../sha.js/bin.js
lrwxrwxrwx 1 song song 23 9月 8 15:55 sshpk-conv -> ../sshpk/bin/sshpk-conv
lrwxrwxrwx 1 song song 23 9月 8 15:55 sshpk-sign -> ../sshpk/bin/sshpk-sign
lrwxrwxrwx 1 song song 25 9月 8 15:55 sshpk-verify -> ../sshpk/bin/sshpk-verify
lrwxrwxrwx 1 song song 22 9月 8 15:55 strip-indent -> ../strip-indent/cli.js
lrwxrwxrwx 1 song song 16 9月 8 15:55 svgo -> ../svgo/bin/svgo
lrwxrwxrwx 1 song song 21 9月 8 15:55 sw-precache -> ../sw-precache/cli.js
lrwxrwxrwx 1 song song 52 9月 8 15:55 uglifyjs -> ../html-minifier/node_modules/uglify-js/bin/uglifyjs
lrwxrwxrwx 1 song song 37 9月 8 15:55 uuid -> ../request/node_modules/uuid/bin/uuid
lrwxrwxrwx 1 song song 25 9月 8 15:55 webpack -> ../webpack/bin/webpack.js
lrwxrwxrwx 1 song song 47 9月 8 15:55 webpack-dev-server -> ../webpack-dev-server/bin/webpack-dev-server.js
lrwxrwxrwx 1 song song 18 9月 8 15:55 which -> ../which/bin/which