为什么我的java程序在heroku中使用JDA时抛出java.lang.NoSuchmetodError？

Question

我在Heroku上托管了这个java discordbot，升级到最新版本的JDA后，我不得不将onGuildMessageRec的更改为onMessageRec的。当从intellij运行我的机器人时，它可以毫无问题地工作，但从Heroku执行它时，它会给我“java.lang.NoSuchmetodError：'net.dv8tion.jda.api.entities.AudioChannelnet.dv8tion.jda.api.entities.GuildVoiceState.getChannel（）”每次我在Discord上发送消息。导致此错误的代码是：AudioChannel audioChannel=e.get成员（）. getVoiceState（）. getChannel（）；在onMessageReception内部。

我个人觉得maven可能向Heroku导入了错误的版本，但我没有任何方法来检查，所以这里是我的pom。xml：

<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.html" target="_blank">apache.org/xsd/maven-4.0.0.xsd">
    <build>
        <plugins>
            <plugin>
                <groupId>com.heroku.sdk</groupId>
                <artifactId>heroku-maven-plugin</artifactId>
                <version>3.0.3</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.10.1</version>
                <configuration>
                    <release>17</release>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.4</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.furetto126.furettobot.FurettoBot</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.furetto126.furettobot</groupId>
    <artifactId>FurettoBot</artifactId>
    <version>1.1</version>

    <properties>
        <maven.compiler.release>17</maven.compiler.release>
    </properties>

    <repositories>
        <repository>
            <id>dv8tion</id>
            <name>m2-dv8tion</name>
            <url>https://m2.dv8tion.net/releases</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>net.dv8tion</groupId>
            <artifactId>JDA</artifactId>
            <version>5.0.0-alpha.12</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>com.sedmelluq</groupId>
            <artifactId>lavaplayer</artifactId>
            <version>1.3.77</version>
        </dependency>
    </dependencies>
</project>

Answer 1

根据我的经验，java。lang.NoSuchMethodError通常意味着存在jar冲突，这意味着有多个jar文件包含某个类。您可以简单地双击idea中的shift，然后搜索特定的类名，以检查jar中是否包含多个特定的类