我试图复制我的不和谐机器人到一个新的项目。我把所有的东西都抄了一遍，但还是有个错误：

Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.javacord.api.DiscordApiBuilder.<init>(DiscordApiBuilder.java:33)
        at Main.main(Main.java:9)
    Caused by: java.lang.IllegalStateException: No DelegateFactoryDelegate implementation was found!
        at org.javacord.api.util.internal.DelegateFactory.<clinit>(DelegateFactory.java:74)
        ... 2 more

主文件：

import org.javacord.api.DiscordApi;
import org.javacord.api.DiscordApiBuilder;

public class Main {

    public static void main(String[] args) {
        String token = "......";

        DiscordApi api = new DiscordApiBuilder()
                .setToken(token)
                .login()
                .join();
        api.addListener(new Spotting());
    }
}

pom文件：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>Infinity_Raiding_Tool</artifactId>
    <version>1.0-SNAPSHOT</version>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <dependency>
            <groupId>org.javacord</groupId>
            <artifactId>javacord</artifactId>
            <version>3.1.1</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.19</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20090211</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.1</version>
            <scope>compile</scope>
        </dependency>

    </dependencies>

</project>

我不知道我错过了什么。它在我的旧项目中运行良好，但在这个新项目中不行。请帮我弄清楚。先谢谢你。