报错误信息：
Already included file name '.../xxx.vue' differs from file name '.../xxx.vue' only in casing.
The file is in the program because:
Imported via '…/xxx.vue' from file '.../xxx.vue'
Root file specified for compilation
Root file specified for compilationVetur(1261)
解决方案：
重新加载 vsocode
1.快捷键：Ctrl + shift + P，打开：“命令面板”，输入：重新加载
2.如果控制台还报错需要重新npm run serve