[Fix] Error : filter FilterClassName not found.

[HuaYuan-Tseng]

Context

In order to classify the purpose of each files, we have created many folders to classify each files. In order to allow the back-end main program to read the home page file, index.html, we will read the config.json located in the root folder inside the main program.

Problem

After loading the config.json, the program can be executed normally. But when executing, the terminal will display an error, as shown in the figure below.

Todo

Try to solve this problem.

[HuaYuan-Tseng]

It's because the settings of config.json. Remove the settings about filter (if empty) can resolve this problem.