Found a thinkphpBUG_PHP tutorial

A thinkphpBUG was found. I found a thinkphpBUG in the project's Portal file. my tp project is in the WebChat directory under the root directory, that is, localhostWebChatWebChat. The structure of the WebChat file is as follows: configuration Portal File: then the project found a thinkphp BUG.

In the project portal file

My tp project is in the WebChat directory under the root directory
Localhost/WebChat

The WebChat structure is as follows:
Configuration entry file:

The project is being executed.PUBLIC/Res/css/index.css
Localhost/WebChat/public/res/index.css (correct)
If you change an APP to WebChat,
Replace it with the following:
Configuration entry file:

Ghost BUG in the project's Portal file my tp project is under the root directory of the WebChat directory that is localhost/WebChat structure is as follows: configure the Portal File: then the project is running...