运行npm run dev 启动项目后，出现如下 Warning
[2019-06-05T17:13:16.265] [INFO] - WARNING Compiled with 2 warnings
17:13:16
[2019-06-05T17:13:16.265] [INFO] -
[2019-06-05T17:13:16.268] [INFO] - warning in ./node_modules/es6-promise/dist/es6-promise.js
[2019-06-05T17:13:16.268] [INFO] -
[2019-06-05T17:13:16.269] [INFO] - There are multiple modules with names that only differ in casing.
This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.
Use equal casing. Compare these module identifiers:
* E:RAIS
ais-project
ode_moduleses6-promisedistes6-promise.js
Used by 11 module(s), i. e.
E:RAIS
ais-project
ode_modulesabel-polyfill
ode_modules
egenerator-runtime
untime.js
* e:RAIS
ais-project
ode_moduleses6-promisedistes6-promise.js
Used by 1 module(s), i. e.
e:RAIS
ais-project
ode_modules\_@ckeditor_ckeditor5-build-classic@12.1.0@@ckeditorckeditor5-build-classicuildckeditor.js
[2019-06-05T17:13:16.269] [INFO] -
[2019-06-05T17:13:16.270] [INFO] - warning in ./node_modules/process/browser.js
[2019-06-05T17:13:16.270] [INFO] -
[2019-06-05T17:13:16.271] [INFO] - There are multiple modules with names that only differ in casing.
This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.
Use equal casing. Compare these module identifiers:
* E:RAIS
ais-project
ode_modulesprocessrowser.js
Used by 13 module(s), i. e.
E:RAIS
ais-project
ode_modulesvue-localstoragedistvue-local-storage.js
* e:RAIS
ais-project
ode_modulesprocessrowser.js
Used by 1 module(s), i. e.
e:RAIS
ais-project
ode_moduleses6-promisedistes6-promise.js 
问题原因：
windows下盘符的大小写导致的。
实际上，上面显示的警告，是指引用文件的时候大小写错了，有时候是盘符，有时候是引入文件的时候插件名
我打开VS Code 在cmd里运行的时候，自动定位到项目地址，盘符是大写，改成小写的e盘符就没问题了。
Be patient, and work hard!