There are multiple modules with names that only differ in casing.This can lead to unexpected........

cause: Inconsistent file name and reference, one uppercase letter, one lowercase letter. For example, the file name is app.js, but when you referenced it, you wrote app.js
. ‘@/API/oa/workingHours aWorkinghoursAllowed/index’; I have written the file name AworkingChina Allowed as AworkingChina Allowed, which is why the above warning appears

52:12-24  Critical dependency: the request of a dependency is an expression

the reason: not in the main. Js file directly defining methods and instance of the prototype and note the red box part is problem solving
just began to found the problem and made for a long time have no problem, also a lot of related articles, baidu is not yet finally settled gave up, first put the
there behind the project are not busy, just use the most stupid way all commented out the code at the beginning, then one line to the test, the result unexpectedly directly to find the problems in one fell swoop

Image not found Return status code 404 (Not Found)

1- Write the URL in the data :require(‘./assets/images/logo.png ‘)
2- Write in the template

Request processing failed; nested exception is tk.mybatis.mapper.MapperException: The current entity class does not contain a property named rnable!

cause: front-background field names do not match

Error: listen EADDRNOTAVAIL 192.168.1.166:9527
at Object.exports._errnoException (util.js:1020:11)
at exports._exceptionWithHostPort (util.js:1043:20)
at Server._listen2 (net.js:1245:19)
at listen (net.js:1294:10)
at net.js:1404:9
at _combinedTickCallback (internal/process/next_tick.js:83:11)
at process._tickCallback (internal/process/next_tick.js:104:9)
at Module.runMain (module.js:606:11)
at run (bootstrap_node.js:389:7)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:504:3

Reason: The server IP address has been changed

Error occured while trying to proxy to: localhost:9527/api//auth/jwt/token and returns the status code 500

Cause: The background server is not on or down