在升级其中一个依赖项的版本之前，我的spring-boot应用程序运行良好。
现在，当我尝试启动应用程序时，它抛出异常。
java.lang.NoClassDefFoundError: ch/qos/logback/classic/Level
at org.springframework.boot.logging.logback.LogbackLoggingSystem.<clinit>(LogbackLoggingSystem.java:67)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.springframework.boot.logging.LoggingSystem.get(LoggingSystem.java:170)
at org.springframework.boot.logging.LoggingSystem.lambda$get$1(LoggingSystem.java:161)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet.lambda$entryConsumer$0(Collections.java:1575)
at java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812)
at java.util.Collections$UnmodifiableMap$UnmodifiableEntrySet$UnmodifiableEntrySetSpliterator.tryAdvance(Collections.java:1594)
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
at org.springframework.boot.logging.LoggingSystem.get(LoggingSystem.java:161)
at org.springframework.boot.logging.log4j2.SpringBootConfigurationFactory.getConfiguration(SpringBootConfigurationFactory.java:55)
at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:451)
at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:385)
at org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(ConfigurationFactory.java:260)
它没有任何编译时错误。
我认为这可能是由于我的spring-boot应用程序使用以下工件导致的两个依赖关系
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</dependency>
我尝试在应用程序的pom.xml中排除上述工件，但这无济于事。
请让我知道如何解决此错误。
任何建议都值得赞赏。