[英]TypeError: Class extends value undefined is not a constructor or null - Node.js
I try to use Clear in my index.js
, but the code doesn't work, it extends the class Clear by Moderation to get Moderation method.我尝试在我的
index.js
中使用 Clear,但代码不起作用,它扩展了 class Clear by Moderation 以获取 Moderation 方法。
Full error:完整错误:
class Clear extends Moderation {
^
TypeError: Class extends value undefined is not a constructor or null
at Object.<anonymous> (C:\Users\Chigu\SoftKr\Asuha-Discord-Universal-Bot\Src\Actions\Moderation\Commands\Clear.js:5:21)
at Module._compile (internal/modules/cjs/loader.js:1133:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
at Module.load (internal/modules/cjs/loader.js:977:32)
at Function.Module._load (internal/modules/cjs/loader.js:877:14)
at Module.require (internal/modules/cjs/loader.js:1019:19)
at require (internal/modules/cjs/helpers.js:77:18)
at Object.<anonymous> (C:\Users\Chigu\SoftKr\Asuha-Discord-Universal-Bot\Src\Actions\Moderation\Moderation.js:2:17)
at Module._compile (internal/modules/cjs/loader.js:1133:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
Process finished with exit code 1
Clear.js清除.js
const Discord = require("discord.js");
const {Moderation} = require("../Moderation");
class Clear extends Moderation {
constructor(message, client) {
super(message, client);
this.command = "clear";
} //methode and code
}
module.exports = {
Clear
}
Moderation.js审核.js
const {Clear} = require("./Commands/Clear");
class Moderation {
constructor(message, client, staff, prefix) {
this.message = message;
this.client = client;
this.staff = staff;
this.prefix = prefix;
} //methode and code
}
module.exports = {
Moderation,
}
Could it be a circular dependency issue?会不会是循环依赖问题? You're importing each class inside the other.
您正在将每个 class 导入另一个内部。 Did you try removing this line from
Moderation.js
?您是否尝试从
Moderation.js
中删除此行?
const {Clear} = require("./Commands/Clear");
I also encountered the same error and did what was said, but there was no solution.我也遇到了同样的错误,按照说的做了,但是没有解决办法。
Then I installed 16.14.0 LTS from nodejs releases and the problem was solved.然后我从 nodejs 版本安装了 16.14.0 LTS,问题就解决了。
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