2.3.1 打开老项目报错，找不到模块 CCDebug.js:216 Uncaught TypeError: Cannot read property 'Initial' of null

Creator 2.x
#1

Uncaught TypeError: Cannot read property ‘Utils’ of null

#2

quick_compile.js:142 Can not find module.module for path : preview-scripts/assets/Script/Utils/Utils.js

#3

WebSocketManage.Instance.Initial();

public static get Instance(): WebSocketManage {
if (!this.instance == null) {
this.instance = new WebSocketManage();
}
return this.instance;
}

constructor() {
}

public Initial() {

}

这里就报错：CCDebug.js:216 Uncaught TypeError: Cannot read property ‘Initial’ of null

#4

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