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vue-cli启动报错问题：

Module build failed (from ./node_modules/babel-loader/lib/index.js):

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in C:\Users\64950\Desktop\project\nodejs-currency\admin-web\node_modules\@babel\helper-compilation-targets\package.json

    at throwExportsNotFound (internal/modules/esm/resolve.js:285:9)

    at packageExportsResolve (internal/modules/esm/resolve.js:491:3)

    at resolveExports (internal/modules/cjs/loader.js:444:36)

    at Function.Module._findPath (internal/modules/cjs/loader.js:484:31)

    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:818:27)

    at Function.Module._load (internal/modules/cjs/loader.js:687:27)

    at Module.require (internal/modules/cjs/loader.js:903:19)

    at require (internal/modules/cjs/helpers.js:74:18)

    at Object.<anonymous> (C:\Users\64950\Desktop\project\nodejs-currency\admin-web\node_modules\@babel\preset-env\lib\debug.js:8:33)

    at Module._compile (internal/modules/cjs/loader.js:1015:30)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1035:10)

    at Module.load (internal/modules/cjs/loader.js:879:32)

    at Function.Module._load (internal/modules/cjs/loader.js:724:14)

    at Module.require (internal/modules/cjs/loader.js:903:19)

    at require (internal/modules/cjs/helpers.js:74:18)

    at Object.<anonymous> (C:\Users\64950\Desktop\project\nodejs-currency\admin-web\node_modules\@babel\preset-env\lib\index.js:11:14)

 @ multi (webpack)-dev-server/client?http://192.168.100.101:8081/sockjs-node (webpack)/hot/dev-server.js ./src/main.js

解决方案：

npm install @babel/helper-compilation-targets --save-dev