Failed to compile.

./demo1.vue?vue&type=script&lang=js& (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/babel-loader/lib??ref--12-0!/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/cache-loader/dist/cjs.js??ref--0-0!/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/vue-loader/lib??vue-loader-options!./demo1.vue?vue&type=script&lang=js&) Module build failed (from /Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/babel-loader/lib/index.js): Error: Cannot find module 'babel-preset-es2015' from '/Users/wubinbin/workstation'     at Function.module.exports [as sync] (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/resolve/lib/sync.js:58:15)     at resolveStandardizedName (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/files/plugins.js:101:31)     at resolvePreset (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/files/plugins.js:58:10)     at loadPreset (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/files/plugins.js:77:20)     at createDescriptor (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-descriptors.js:154:9)     at items.map (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-descriptors.js:109:50)     at Array.map (<anonymous>)     at createDescriptors (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-descriptors.js:109:29)     at createPresetDescriptors (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-descriptors.js:101:10)     at presets (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-descriptors.js:47:19)     at mergeChainOpts (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-chain.js:320:26)     at /Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-chain.js:283:7     at buildRootChain (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/config-chain.js:120:22)     at loadPrivatePartialConfig (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/partial.js:85:55)     at Object.loadPartialConfig (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/@babel/core/lib/config/partial.js:110:18)     at Object.<anonymous> (/Users/wubinbin/.nvm/versions/node/v11.6.0/lib/node_modules/@vue/cli-service-global/node_modules/babel-loader/lib/index.js:140:26)