dropwizard java。lang.NoClassDefFoundError:ch/qos/logback/classic/filter/ThresholdFilter

Question

我有一个Dropwizard应用程序示例。尝试使用命令启动应用程序时出现此错误-->； java-jar-target\DropWizardExample-0.0.1-SNAPSHOT。jar服务器

Exception in thread "main" java.lang.NoClassDefFoundError: ch/qos/logback/classic/filter/ThresholdFilter
at io.dropwizard.Application.bootstrapLogging(Application.java:38)
at io.dropwizard.Application.<init>(Application.java:26)
at com.oracle.demo.MyApplication.<init>(MyApplication.java:10)
at com.oracle.demo.MyApplication.main(MyApplication.java:25)
Caused by: java.lang.ClassNotFoundException: ch.qos.logback.classic.filter.ThresholdFilter
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 4 more

我正在学习演示应用程序的教程https://howtodoinjava.com/dropwizard/tutorial-and-hello-world-example/。 请建议如何解决此错误