vue2脚手架使用vuex报错

 WARNING  Compiled with 3 warnings                                                                                                                                                                                    下午7:21:02
 warning  in ./node_modules/vuex/dist/vuex.esm-browser.js
 ERROR  Failed to compile with 1 error                                                                                                                                                                                下午7:21:32
This dependency was not found:

* Vuex in ./src/store/index.js

解决方案

npm install vuex@3.0.0